update

.github/ISSUE_TEMPLATE/1_data.md

+---
+name: 1. 数据类问题
+about: 数据标注、格式转换等问题
+---
+
+说明数据类型(图像分类、目标检测、实例分割或语义分割)

.github/ISSUE_TEMPLATE/2_train.md

+---
+name: 2. 模型训练
+about: 模型训练中的问题
+---
+
+如模型训练出错，建议贴上模型训练代码，以便开发人员分析，并快速响应

.github/ISSUE_TEMPLATE/3_deploy.md

+---
+name: 3. 模型部署
+about: 模型部署相关问题，包括C++、Python、Paddle Lite等
+---
+
+说明您的部署环境，部署需求，模型类型和应用场景等，便于开发人员快速响应。

.github/ISSUE_TEMPLATE/4_gui.md

+---
+name: 4. PaddleX GUI使用问题
+about: Paddle GUI客户端使用问题
+---
+
+PaddleX GUI: https://www.paddlepaddle.org.cn/paddle/paddleX (请在ISSUE内容中保留此行内容)

.github/ISSUE_TEMPLATE/5_other.md

+---
+name: 5. 其它类型问题
+about: 所有问题都可以在这里提
+---

README.md

+
+
+
+<p align="center">
+  <img src="./docs/gui/images/paddlex.png" width="360" height ="55" alt="PaddleX" align="middle" />
+</p>
+
+
+<p align= "center"> PaddleX -- 飞桨全流程开发套件，以低代码的形式支持开发者快速实现产业实际项目落地 </p>
+
+[![License](https://img.shields.io/badge/license-Apache%202-red.svg)](LICENSE)
+[![Version](https://img.shields.io/github/release/PaddlePaddle/PaddleX.svg)](https://github.com/PaddlePaddle/PaddleX/releases)
+![python version](https://img.shields.io/badge/python-3.6+-orange.svg)
+![support os](https://img.shields.io/badge/os-linux%2C%20win%2C%20mac-yellow.svg)
+![QQGroup](https://img.shields.io/badge/QQ_Group-1045148026-52B6EF?style=social&logo=tencent-qq&logoColor=000&logoWidth=20)
+
+集成飞桨智能视觉领域**图像分类**、**目标检测**、**语义分割**、**实例分割**任务能力，将深度学习开发全流程从**数据准备**、**模型训练与优化**到**多端部署**端到端打通，并提供**统一任务API接口**及**图形化开发界面Demo**。开发者无需分别安装不同套件，以**低代码**的形式即可快速完成飞桨全流程开发。
+
+**PaddleX** 经过**质检**、**安防**、**巡检**、**遥感**、**零售**、**医疗**等十多个行业实际应用场景验证，沉淀产业实际经验，**并提供丰富的案例实践教程**，全程助力开发者产业实践落地。
+
+
+
+## 安装
+
+**PaddleX提供两种开发模式，满足用户的不同需求：**
+
+1. **Python开发模式：** 
+
+   通过简洁易懂的Python API，在兼顾功能全面性、开发灵活性、集成方便性的基础上，给开发者最流畅的深度学习开发体验。<br>
+
+  **前置依赖**
+> - paddlepaddle >= 1.8.0
+> - python >= 3.6
+> - cython
+> - pycocotools
+
+```
+pip install paddlex -i https://mirror.baidu.com/pypi/simple
+```
+详细安装方法请参考[PaddleX安装](https://paddlex.readthedocs.io/zh_CN/develop/install.html)
+
+
+2. **Padlde GUI模式：**
+
+   无代码开发的可视化客户端，应用Paddle API实现，使开发者快速进行产业项目验证，并为用户开发自有深度学习软件/应用提供参照。
+
+- 前往[PaddleX官网](https://www.paddlepaddle.org.cn/paddle/paddlex)，申请下载Paddle X GUI一键绿色安装包。
+
+- 前往[PaddleX GUI使用教程](./docs/gui/how_to_use.md)了解PaddleX GUI使用详情。
+
+  
+
+## 产品模块说明
+
+- **数据准备**：兼容ImageNet、VOC、COCO等常用数据协议，同时与Labelme、精灵标注助手、[EasyData智能数据服务平台](https://ai.baidu.com/easydata/)等无缝衔接，全方位助力开发者更快完成数据准备工作。
+
+- **数据预处理及增强**：提供极简的图像预处理和增强方法--Transforms，适配imgaug图像增强库，支持**上百种数据增强策略**，是开发者快速缓解小样本数据训练的问题。
+
+- **模型训练**：集成[PaddleClas](https://github.com/PaddlePaddle/PaddleClas), [PaddleDetection](https://github.com/PaddlePaddle/PaddleDetection), [PaddleSeg](https://github.com/PaddlePaddle/PaddleSeg)视觉开发套件，提供大量精选的、经过产业实践的高质量预训练模型，使开发者更快实现工业级模型效果。
+
+- **模型调优**：内置模型可解释性模块、[VisualDL](https://github.com/PaddlePaddle/VisualDL)可视化分析工具。使开发者可以更直观的理解模型的特征提取区域、训练过程参数变化，从而快速优化模型。
+
+- **多端安全部署**：内置[PaddleSlim](https://github.com/PaddlePaddle/PaddleSlim)模型压缩工具和**模型加密部署模块**，与飞桨原生预测库Paddle Inference及高性能端侧推理引擎[Paddle Lite](https://github.com/PaddlePaddle/Paddle-Lite) 无缝打通，使开发者快速实现模型的多端、高性能、安全部署。
+
+  
+
+## 完整使用文档及API说明
+
+- [完整PaddleX在线使用文档目录](https://paddlex.readthedocs.io/zh_CN/develop/index.html)
+
+- [10分钟快速上手系列教程](https://paddlex.readthedocs.io/zh_CN/develop/quick_start.html)
+- [PaddleX模型训练教程集合](https://paddlex.readthedocs.io/zh_CN/develop/train/index.html)
+- [PaddleX API接口说明](https://paddlex.readthedocs.io/zh_CN/develop/apis/index.html)
+
+### 在线项目示例
+
+为了使开发者更快掌握PaddleX API，我们创建了一系列完整的示例教程，您可通过AIStudio一站式开发平台，快速在线运行PaddleX的项目。
+
+- [PaddleX快速上手CV模型训练](https://aistudio.baidu.com/aistudio/projectdetail/450925)
+- [PaddleX快速上手——MobileNetV3-ssld 化妆品分类](https://aistudio.baidu.com/aistudio/projectdetail/450220)
+- [PaddleX快速上手——Faster-RCNN AI识虫](https://aistudio.baidu.com/aistudio/projectdetail/439888)
+- [PaddleX快速上手——DeepLabv3+ 视盘分割](https://aistudio.baidu.com/aistudio/projectdetail/440197)
+
+
+
+## 全流程产业应用案例
+
+（continue to be updated）
+
+* 工业巡检：
+  * [工业表计读数](https://paddlex.readthedocs.io/zh_CN/develop/examples/meter_reader.html)
+
+* 工业质检：
+  * 电池隔膜缺陷检测(Coming Soon)
+
+* [人像分割](https://paddlex.readthedocs.io/zh_CN/develop/examples/human_segmentation.html)
+
+
+
+## [FAQ](./docs/gui/faq.md)
+
+
+
+## 交流与反馈
+
+- 项目官网：https://www.paddlepaddle.org.cn/paddle/paddlex
+- PaddleX用户交流群：1045148026 (手机QQ扫描如下二维码快速加入)  
+  ![](./docs/gui/images/QR.jpg)
+
+
+
+## 更新日志
+
+> [历史版本及更新内容](https://paddlex.readthedocs.io/zh_CN/develop/change_log.html)
+
+- 2020.07.13 v1.1.0
+- 2020.07.12 v1.0.8
+- 2020.05.20 v1.0.0
+- 2020.05.17 v0.1.8
+
+
+
+## 贡献代码
+
+我们非常欢迎您为PaddleX贡献代码或者提供使用建议。如果您可以修复某个issue或者增加一个新功能，欢迎给我们提交Pull Requests。

deploy/README.md

-# 多端安全部署
+# 模型部署
 
 本目录为PaddleX模型部署代码，编译和使用教程参考：
 
-- [服务端部署(支持Python部署、C++部署、模型加密部署)](../docs/tutorials/deploy/deploy_server/)
-- [OpenVINO部署](../docs/tutorials/deploy/deploy_openvino.md)
-- [移动端部署](../docs/tutorials/deploy/deploy_lite.md)
+- [服务端部署](../docs/deploy/server/)
+  - [Python部署](../docs/deploy/server/python.md)
+  - [C++部署](../docs/deploy/server/cpp/)
+    - [Windows平台部署](../docs/deploy/server/cpp/windows.md)
+    - [Linux平台部署](../docs/deploy/server/cpp/linux.md)
+  - [模型加密部署](../docs/deploy/server/encryption.md)
+- [Nvidia Jetson开发板部署](../docs/deploy/nvidia-jetson.md)
+- [移动端部署](../docs/deploy/paddlelite/)
+  - [模型压缩](../docs/deploy/paddlelite/slim)
+    - [模型量化](../docs/deploy/paddlelite/slim/quant.md)
+    - [模型裁剪](../docs/deploy/paddlelite/slim/prune.md)
+  - [Android平台](../docs/deploy/paddlelite/android.md)

deploy/cpp/CMakeLists.txt

@@ -3,7 +3,11 @@ project(PaddleX CXX C)
 
 option(WITH_MKL        "Compile demo with MKL/OpenBlas support,defaultuseMKL."          ON)
 option(WITH_GPU        "Compile demo with GPU/CPU, default use CPU."                    ON)
-option(WITH_STATIC_LIB "Compile demo with static/shared library, default use static."   OFF)
+if (NOT WIN32)
+    option(WITH_STATIC_LIB "Compile demo with static/shared library, default use static."   OFF)
+else()
+    option(WITH_STATIC_LIB "Compile demo with static/shared library, default use static."   ON)
+endif()
 option(WITH_TENSORRT "Compile demo with TensorRT."   OFF)
 option(WITH_ENCRYPTION "Compile demo with encryption tool."   OFF)
 
@@ -46,7 +50,9 @@ endmacro()
 
 
 if (WITH_ENCRYPTION)
-add_definitions( -DWITH_ENCRYPTION=${WITH_ENCRYPTION})
+  if (NOT (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64"))
+    add_definitions( -DWITH_ENCRYPTION=${WITH_ENCRYPTION})
+  endif()
 endif()
 
 if (WITH_MKL)
@@ -57,8 +63,10 @@ if (NOT DEFINED PADDLE_DIR OR ${PADDLE_DIR} STREQUAL "")
     message(FATAL_ERROR "please set PADDLE_DIR with -DPADDLE_DIR=/path/paddle_influence_dir")
 endif()
 
-if (NOT DEFINED OPENCV_DIR OR ${OPENCV_DIR} STREQUAL "")
+if (NOT (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64"))
+  if (NOT DEFINED OPENCV_DIR OR ${OPENCV_DIR} STREQUAL "")
     message(FATAL_ERROR "please set OPENCV_DIR with -DOPENCV_DIR=/path/opencv")
+  endif()
 endif()
 
 include_directories("${CMAKE_SOURCE_DIR}/")
@@ -106,10 +114,17 @@ if (WIN32)
   find_package(OpenCV REQUIRED PATHS ${OPENCV_DIR}/build/ NO_DEFAULT_PATH)
   unset(OpenCV_DIR CACHE)
 else ()
-  find_package(OpenCV REQUIRED PATHS ${OPENCV_DIR}/share/OpenCV NO_DEFAULT_PATH)
+  if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64") # x86_64 aarch64
+    set(OpenCV_INCLUDE_DIRS "/usr/include/opencv4")
+    file(GLOB OpenCV_LIBS /usr/lib/aarch64-linux-gnu/libopencv_*${CMAKE_SHARED_LIBRARY_SUFFIX})
+    message("OpenCV libs: ${OpenCV_LIBS}")
+  else()
+    find_package(OpenCV REQUIRED PATHS ${OPENCV_DIR}/share/OpenCV NO_DEFAULT_PATH)
+  endif()
   include_directories("${PADDLE_DIR}/paddle/include")
   link_directories("${PADDLE_DIR}/paddle/lib")
 endif ()
+
 include_directories(${OpenCV_INCLUDE_DIRS})
 
 if (WIN32)
@@ -255,9 +270,11 @@ endif()
 
 if(WITH_ENCRYPTION)
   if(NOT WIN32)
+    if (NOT (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64"))
       include_directories("${ENCRYPTION_DIR}/include")
       link_directories("${ENCRYPTION_DIR}/lib")
       set(DEPS ${DEPS} ${ENCRYPTION_DIR}/lib/libpmodel-decrypt${CMAKE_SHARED_LIBRARY_SUFFIX})
+    endif()
   else()
       include_directories("${ENCRYPTION_DIR}/include")
       link_directories("${ENCRYPTION_DIR}/lib")
@@ -271,6 +288,7 @@ if (NOT WIN32)
 endif()
 
 set(DEPS ${DEPS} ${OpenCV_LIBS})
+
 add_library(paddlex_inference SHARED src/visualize src/transforms.cpp src/paddlex.cpp)
 ADD_DEPENDENCIES(paddlex_inference ext-yaml-cpp)
 target_link_libraries(paddlex_inference ${DEPS})
@@ -287,29 +305,61 @@ add_executable(segmenter demo/segmenter.cpp src/transforms.cpp src/paddlex.cpp s
 ADD_DEPENDENCIES(segmenter ext-yaml-cpp)
 target_link_libraries(segmenter ${DEPS})
 
+add_executable(video_classifier demo/video_classifier.cpp src/transforms.cpp src/paddlex.cpp src/visualize.cpp)
+ADD_DEPENDENCIES(video_classifier ext-yaml-cpp)
+target_link_libraries(video_classifier ${DEPS})
+
+add_executable(video_detector demo/video_detector.cpp src/transforms.cpp src/paddlex.cpp src/visualize.cpp)
+ADD_DEPENDENCIES(video_detector ext-yaml-cpp)
+target_link_libraries(video_detector ${DEPS})
+
+add_executable(video_segmenter demo/video_segmenter.cpp src/transforms.cpp src/paddlex.cpp src/visualize.cpp)
+ADD_DEPENDENCIES(video_segmenter ext-yaml-cpp)
+target_link_libraries(video_segmenter ${DEPS})
+
+
 if (WIN32 AND WITH_MKL)
     add_custom_command(TARGET classifier POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./mklml.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./libiomp5md.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./mkldnn.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./paddlex_inference/Release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./paddlex_inference/Release/libiomp5md.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./paddlex_inference/Release/mkldnn.dll
         COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./release/mklml.dll
         COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./release/libiomp5md.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./release/mkldnn.dll
     )
     add_custom_command(TARGET detector POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./mklml.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./libiomp5md.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./mkldnn.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./paddlex_inference/Release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./paddlex_inference/Release/libiomp5md.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./paddlex_inference/Release/mkldnn.dll
         COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./release/mklml.dll
         COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./release/libiomp5md.dll
     )
     add_custom_command(TARGET segmenter POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./mklml.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./libiomp5md.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./mkldnn.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./paddlex_inference/Release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./paddlex_inference/Release/libiomp5md.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./paddlex_inference/Release/mkldnn.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./release/libiomp5md.dll
+    )
+    add_custom_command(TARGET video_classifier POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./paddlex_inference/Release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./paddlex_inference/Release/libiomp5md.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./paddlex_inference/Release/mkldnn.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./release/libiomp5md.dll
+    )
+    add_custom_command(TARGET video_detector POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./paddlex_inference/Release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./paddlex_inference/Release/libiomp5md.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./paddlex_inference/Release/mkldnn.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./release/libiomp5md.dll
+    )
+    add_custom_command(TARGET video_segmenter POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./paddlex_inference/Release/mklml.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./paddlex_inference/Release/libiomp5md.dll
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./paddlex_inference/Release/mkldnn.dll
         COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/mklml.dll ./release/mklml.dll
         COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mklml/lib/libiomp5md.dll ./release/libiomp5md.dll
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PADDLE_DIR}/third_party/install/mkldnn/lib/mkldnn.dll ./release/mkldnn.dll
     )
     # for encryption
     if (EXISTS "${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll")
@@ -325,6 +375,18 @@ if (WIN32 AND WITH_MKL)
             COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./pmodel-decrypt.dll
             COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./release/pmodel-decrypt.dll
         )
+        add_custom_command(TARGET video_classifier POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./pmodel-decrypt.dll
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./release/pmodel-decrypt.dll
+        )
+        add_custom_command(TARGET video_detector POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./pmodel-decrypt.dll
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./release/pmodel-decrypt.dll
+        )
+        add_custom_command(TARGET video_segmenter POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./pmodel-decrypt.dll
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ENCRYPTION_DIR}/lib/pmodel-decrypt.dll ./release/pmodel-decrypt.dll
+        )
     endif()
 endif()
 

deploy/cpp/demo/classifier.cpp

@@ -37,7 +37,6 @@ DEFINE_int32(batch_size, 1, "Batch size of infering");
 DEFINE_int32(thread_num,
              omp_get_num_procs(),
              "Number of preprocessing threads");
-DEFINE_bool(use_ir_optim, true, "use ir optimization");
 
 int main(int argc, char** argv) {
   // Parsing command-line
@@ -52,18 +51,15 @@ int main(int argc, char** argv) {
     return -1;
   }
 
-  // 加载模型
+  // Load model
   PaddleX::Model model;
   model.Init(FLAGS_model_dir,
              FLAGS_use_gpu,
              FLAGS_use_trt,
              FLAGS_gpu_id,
-             FLAGS_key,
-             FLAGS_use_ir_optim);
+             FLAGS_key);
 
-  // 进行预测
-  double total_running_time_s = 0.0;
-  double total_imread_time_s = 0.0;
+  // Predict
   int imgs = 1;
   if (FLAGS_image_list != "") {
     std::ifstream inf(FLAGS_image_list);
@@ -71,7 +67,7 @@ int main(int argc, char** argv) {
       std::cerr << "Fail to open file " << FLAGS_image_list << std::endl;
       return -1;
     }
-    // 多batch预测
+    // Mini-batch predict
     std::string image_path;
     std::vector<std::string> image_paths;
     while (getline(inf, image_path)) {
@@ -79,8 +75,7 @@ int main(int argc, char** argv) {
     }
     imgs = image_paths.size();
     for (int i = 0; i < image_paths.size(); i += FLAGS_batch_size) {
-      auto start = system_clock::now();
-      // 读图像
+      // Read image
       int im_vec_size =
           std::min(static_cast<int>(image_paths.size()), i + FLAGS_batch_size);
       std::vector<cv::Mat> im_vec(im_vec_size - i);
@@ -91,19 +86,7 @@ int main(int argc, char** argv) {
       for (int j = i; j < im_vec_size; ++j) {
         im_vec[j - i] = std::move(cv::imread(image_paths[j], 1));
       }
-      auto imread_end = system_clock::now();
       model.predict(im_vec, &results, thread_num);
-
-      auto imread_duration = duration_cast<microseconds>(imread_end - start);
-      total_imread_time_s += static_cast<double>(imread_duration.count()) *
-                             microseconds::period::num /
-                             microseconds::period::den;
-
-      auto end = system_clock::now();
-      auto duration = duration_cast<microseconds>(end - start);
-      total_running_time_s += static_cast<double>(duration.count()) *
-                              microseconds::period::num /
-                              microseconds::period::den;
       for (int j = i; j < im_vec_size; ++j) {
         std::cout << "Path:" << image_paths[j]
                   << ", predict label: " << results[j - i].category
@@ -112,23 +95,12 @@ int main(int argc, char** argv) {
       }
     }
   } else {
-    auto start = system_clock::now();
     PaddleX::ClsResult result;
     cv::Mat im = cv::imread(FLAGS_image, 1);
     model.predict(im, &result);
-    auto end = system_clock::now();
-    auto duration = duration_cast<microseconds>(end - start);
-    total_running_time_s += static_cast<double>(duration.count()) *
-                            microseconds::period::num /
-                            microseconds::period::den;
     std::cout << "Predict label: " << result.category
               << ", label_id:" << result.category_id
               << ", score: " << result.score << std::endl;
   }
-  std::cout << "Total running time: " << total_running_time_s
-            << " s, average running time: " << total_running_time_s / imgs
-            << " s/img, total read img time: " << total_imread_time_s
-            << " s, average read time: " << total_imread_time_s / imgs
-            << " s/img, batch_size = " << FLAGS_batch_size << std::endl;
   return 0;
 }

deploy/cpp/demo/detector.cpp

@@ -43,10 +43,9 @@ DEFINE_double(threshold,
 DEFINE_int32(thread_num,
              omp_get_num_procs(),
              "Number of preprocessing threads");
-DEFINE_bool(use_ir_optim, true, "use ir optimization");
 
 int main(int argc, char** argv) {
-  // 解析命令行参数
+  // Parsing command-line
   google::ParseCommandLineFlags(&argc, &argv, true);
 
   if (FLAGS_model_dir == "") {
@@ -57,21 +56,16 @@ int main(int argc, char** argv) {
     std::cerr << "--image or --image_list need to be defined" << std::endl;
     return -1;
   }
-  // 加载模型
+  // Load model
   PaddleX::Model model;
   model.Init(FLAGS_model_dir,
              FLAGS_use_gpu,
              FLAGS_use_trt,
              FLAGS_gpu_id,
-             FLAGS_key,
-             FLAGS_use_ir_optim);
-
-  double total_running_time_s = 0.0;
-  double total_imread_time_s = 0.0;
+             FLAGS_key);
   int imgs = 1;
-  auto colormap = PaddleX::GenerateColorMap(model.labels.size());
   std::string save_dir = "output";
-  // 进行预测
+  // Predict
   if (FLAGS_image_list != "") {
     std::ifstream inf(FLAGS_image_list);
     if (!inf) {
@@ -85,7 +79,6 @@ int main(int argc, char** argv) {
     }
     imgs = image_paths.size();
     for (int i = 0; i < image_paths.size(); i += FLAGS_batch_size) {
-      auto start = system_clock::now();
       int im_vec_size =
           std::min(static_cast<int>(image_paths.size()), i + FLAGS_batch_size);
       std::vector<cv::Mat> im_vec(im_vec_size - i);
@@ -96,18 +89,8 @@ int main(int argc, char** argv) {
       for (int j = i; j < im_vec_size; ++j) {
         im_vec[j - i] = std::move(cv::imread(image_paths[j], 1));
       }
-      auto imread_end = system_clock::now();
       model.predict(im_vec, &results, thread_num);
-      auto imread_duration = duration_cast<microseconds>(imread_end - start);
-      total_imread_time_s += static_cast<double>(imread_duration.count()) *
-                             microseconds::period::num /
-                             microseconds::period::den;
-      auto end = system_clock::now();
-      auto duration = duration_cast<microseconds>(end - start);
-      total_running_time_s += static_cast<double>(duration.count()) *
-                              microseconds::period::num /
-                              microseconds::period::den;
-      // 输出结果目标框
+      // Output predicted bounding boxes
       for (int j = 0; j < im_vec_size - i; ++j) {
         for (int k = 0; k < results[j].boxes.size(); ++k) {
           std::cout << "image file: " << image_paths[i + j] << ", ";
@@ -121,10 +104,10 @@ int main(int argc, char** argv) {
                     << results[j].boxes[k].coordinate[3] << ")" << std::endl;
         }
       }
-      // 可视化
+      // Visualize results
       for (int j = 0; j < im_vec_size - i; ++j) {
         cv::Mat vis_img = PaddleX::Visualize(
-            im_vec[j], results[j], model.labels, colormap, FLAGS_threshold);
+            im_vec[j], results[j], model.labels, FLAGS_threshold);
         std::string save_path =
             PaddleX::generate_save_path(FLAGS_save_dir, image_paths[i + j]);
         cv::imwrite(save_path, vis_img);
@@ -132,16 +115,10 @@ int main(int argc, char** argv) {
       }
     }
   } else {
-    auto start = system_clock::now();
     PaddleX::DetResult result;
     cv::Mat im = cv::imread(FLAGS_image, 1);
     model.predict(im, &result);
-    auto end = system_clock::now();
-    auto duration = duration_cast<microseconds>(end - start);
-    total_running_time_s += static_cast<double>(duration.count()) *
-                            microseconds::period::num /
-                            microseconds::period::den;
-    // 输出结果目标框
+    // Output predicted bounding boxes
     for (int i = 0; i < result.boxes.size(); ++i) {
       std::cout << "image file: " << FLAGS_image << std::endl;
       std::cout << ", predict label: " << result.boxes[i].category
@@ -153,9 +130,9 @@ int main(int argc, char** argv) {
                 << result.boxes[i].coordinate[3] << ")" << std::endl;
     }
 
-    // 可视化
+    // Visualize results
     cv::Mat vis_img =
-        PaddleX::Visualize(im, result, model.labels, colormap, FLAGS_threshold);
+        PaddleX::Visualize(im, result, model.labels, FLAGS_threshold);
     std::string save_path =
         PaddleX::generate_save_path(FLAGS_save_dir, FLAGS_image);
     cv::imwrite(save_path, vis_img);
@@ -163,11 +140,5 @@ int main(int argc, char** argv) {
     std::cout << "Visualized output saved as " << save_path << std::endl;
   }
 
-  std::cout << "Total running time: " << total_running_time_s
-            << " s, average running time: " << total_running_time_s / imgs
-            << " s/img, total read img time: " << total_imread_time_s
-            << " s, average read img time: " << total_imread_time_s / imgs
-            << " s, batch_size = " << FLAGS_batch_size << std::endl;
-
   return 0;
 }

deploy/cpp/demo/segmenter.cpp

@@ -39,10 +39,9 @@ DEFINE_int32(batch_size, 1, "Batch size of infering");
 DEFINE_int32(thread_num,
              omp_get_num_procs(),
              "Number of preprocessing threads");
-DEFINE_bool(use_ir_optim, false, "use ir optimization");
 
 int main(int argc, char** argv) {
-  // 解析命令行参数
+  // Parsing command-line
   google::ParseCommandLineFlags(&argc, &argv, true);
 
   if (FLAGS_model_dir == "") {
@@ -54,20 +53,15 @@ int main(int argc, char** argv) {
     return -1;
   }
 
-  // 加载模型
+  // Load model
   PaddleX::Model model;
   model.Init(FLAGS_model_dir,
              FLAGS_use_gpu,
              FLAGS_use_trt,
              FLAGS_gpu_id,
-             FLAGS_key,
-             FLAGS_use_ir_optim);
-
-  double total_running_time_s = 0.0;
-  double total_imread_time_s = 0.0;
+             FLAGS_key);
   int imgs = 1;
-  auto colormap = PaddleX::GenerateColorMap(model.labels.size());
-  // 进行预测
+  // Predict
   if (FLAGS_image_list != "") {
     std::ifstream inf(FLAGS_image_list);
     if (!inf) {
@@ -81,7 +75,6 @@ int main(int argc, char** argv) {
     }
     imgs = image_paths.size();
     for (int i = 0; i < image_paths.size(); i += FLAGS_batch_size) {
-      auto start = system_clock::now();
       int im_vec_size =
           std::min(static_cast<int>(image_paths.size()), i + FLAGS_batch_size);
       std::vector<cv::Mat> im_vec(im_vec_size - i);
@@ -92,21 +85,11 @@ int main(int argc, char** argv) {
       for (int j = i; j < im_vec_size; ++j) {
         im_vec[j - i] = std::move(cv::imread(image_paths[j], 1));
       }
-      auto imread_end = system_clock::now();
       model.predict(im_vec, &results, thread_num);
-      auto imread_duration = duration_cast<microseconds>(imread_end - start);
-      total_imread_time_s += static_cast<double>(imread_duration.count()) *
-                             microseconds::period::num /
-                             microseconds::period::den;
-      auto end = system_clock::now();
-      auto duration = duration_cast<microseconds>(end - start);
-      total_running_time_s += static_cast<double>(duration.count()) *
-                              microseconds::period::num /
-                              microseconds::period::den;
-      // 可视化
+      // Visualize results
       for (int j = 0; j < im_vec_size - i; ++j) {
         cv::Mat vis_img =
-            PaddleX::Visualize(im_vec[j], results[j], model.labels, colormap);
+            PaddleX::Visualize(im_vec[j], results[j], model.labels);
         std::string save_path =
             PaddleX::generate_save_path(FLAGS_save_dir, image_paths[i + j]);
         cv::imwrite(save_path, vis_img);
@@ -114,28 +97,16 @@ int main(int argc, char** argv) {
       }
     }
   } else {
-    auto start = system_clock::now();
     PaddleX::SegResult result;
     cv::Mat im = cv::imread(FLAGS_image, 1);
     model.predict(im, &result);
-    auto end = system_clock::now();
-    auto duration = duration_cast<microseconds>(end - start);
-    total_running_time_s += static_cast<double>(duration.count()) *
-                            microseconds::period::num /
-                            microseconds::period::den;
-    // 可视化
-    cv::Mat vis_img = PaddleX::Visualize(im, result, model.labels, colormap);
+    // Visualize results
+    cv::Mat vis_img = PaddleX::Visualize(im, result, model.labels);
     std::string save_path =
         PaddleX::generate_save_path(FLAGS_save_dir, FLAGS_image);
     cv::imwrite(save_path, vis_img);
     result.clear();
     std::cout << "Visualized output saved as " << save_path << std::endl;
   }
-  std::cout << "Total running time: " << total_running_time_s
-            << " s, average running time: " << total_running_time_s / imgs
-            << " s/img, total read img time: " << total_imread_time_s
-            << " s, average read img time: " << total_imread_time_s / imgs
-            << " s, batch_size = " << FLAGS_batch_size << std::endl;
-
   return 0;
 }

deploy/cpp/demo/video_classifier.cpp

+//   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <glog/logging.h>
+#include <omp.h>
+
+#include <algorithm>
+#include <chrono>  // NOLINT
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <utility>
+
+#include "include/paddlex/paddlex.h"
+#include "include/paddlex/visualize.h"
+
+#if defined(__arm__) || defined(__aarch64__)
+#include <opencv2/videoio/legacy/constants_c.h>
+#endif
+
+using namespace std::chrono;  // NOLINT
+
+DEFINE_string(model_dir, "", "Path of inference model");
+DEFINE_bool(use_gpu, false, "Infering with GPU or CPU");
+DEFINE_bool(use_trt, false, "Infering with TensorRT");
+DEFINE_int32(gpu_id, 0, "GPU card id");
+DEFINE_string(key, "", "key of encryption");
+DEFINE_bool(use_camera, false, "Infering with Camera");
+DEFINE_int32(camera_id, 0, "Camera id");
+DEFINE_string(video_path, "", "Path of input video");
+DEFINE_bool(show_result, false, "show the result of each frame with a window");
+DEFINE_bool(save_result, true, "save the result of each frame to a video");
+DEFINE_string(save_dir, "output", "Path to save visualized image");
+
+int main(int argc, char** argv) {
+  // Parsing command-line
+  google::ParseCommandLineFlags(&argc, &argv, true);
+
+  if (FLAGS_model_dir == "") {
+    std::cerr << "--model_dir need to be defined" << std::endl;
+    return -1;
+  }
+  if (FLAGS_video_path == "" & FLAGS_use_camera == false) {
+    std::cerr << "--video_path or --use_camera need to be defined" << std::endl;
+    return -1;
+  }
+
+  // Load model
+  PaddleX::Model model;
+  model.Init(FLAGS_model_dir,
+             FLAGS_use_gpu,
+             FLAGS_use_trt,
+             FLAGS_gpu_id,
+             FLAGS_key);
+
+  // Open video
+  cv::VideoCapture capture;
+  if (FLAGS_use_camera) {
+    capture.open(FLAGS_camera_id);
+    if (!capture.isOpened()) {
+      std::cout << "Can not open the camera "
+                << FLAGS_camera_id << "."
+                << std::endl;
+      return -1;
+    }
+  } else {
+    capture.open(FLAGS_video_path);
+    if (!capture.isOpened()) {
+      std::cout << "Can not open the video "
+                << FLAGS_video_path << "."
+                << std::endl;
+      return -1;
+    }
+  }
+
+  // Create a VideoWriter
+  cv::VideoWriter video_out;
+  std::string video_out_path;
+  if (FLAGS_save_result) {
+    // Get video information: resolution, fps
+    int video_width = static_cast<int>(capture.get(CV_CAP_PROP_FRAME_WIDTH));
+    int video_height = static_cast<int>(capture.get(CV_CAP_PROP_FRAME_HEIGHT));
+    int video_fps = static_cast<int>(capture.get(CV_CAP_PROP_FPS));
+    int video_fourcc;
+    if (FLAGS_use_camera) {
+      video_fourcc = 828601953;
+    } else {
+      video_fourcc = static_cast<int>(capture.get(CV_CAP_PROP_FOURCC));
+    }
+
+    if (FLAGS_use_camera) {
+      time_t now = time(0);
+      video_out_path =
+        PaddleX::generate_save_path(FLAGS_save_dir,
+                                    std::to_string(now) + ".mp4");
+    } else {
+      video_out_path =
+        PaddleX::generate_save_path(FLAGS_save_dir, FLAGS_video_path);
+    }
+    video_out.open(video_out_path.c_str(),
+                   video_fourcc,
+                   video_fps,
+                   cv::Size(video_width, video_height),
+                   true);
+    if (!video_out.isOpened()) {
+      std::cout << "Create video writer failed!" << std::endl;
+      return -1;
+    }
+  }
+
+  PaddleX::ClsResult result;
+  cv::Mat frame;
+  int key;
+  while (capture.read(frame)) {
+    if (FLAGS_show_result || FLAGS_use_camera) {
+     key = cv::waitKey(1);
+     // When pressing `ESC`, then exit program and result video is saved
+     if (key == 27) {
+       break;
+     }
+    } else if (frame.empty()) {
+      break;
+    }
+    // Begin to predict
+    model.predict(frame, &result);
+    // Visualize results
+    cv::Mat vis_img = frame.clone();
+    auto colormap = PaddleX::GenerateColorMap(model.labels.size());
+    int c1 = colormap[3 * result.category_id + 0];
+    int c2 = colormap[3 * result.category_id + 1];
+    int c3 = colormap[3 * result.category_id + 2];
+    cv::Scalar text_color = cv::Scalar(c1, c2, c3);
+    std::string text = result.category;
+    text += std::to_string(static_cast<int>(result.score * 100)) + "%";
+    int font_face = cv::FONT_HERSHEY_SIMPLEX;
+    double font_scale = 0.5f;
+    float thickness = 0.5;
+    cv::Size text_size =
+        cv::getTextSize(text, font_face, font_scale, thickness, nullptr);
+    cv::Point origin;
+    origin.x = frame.cols / 2;
+    origin.y = frame.rows / 2;
+    cv::Rect text_back = cv::Rect(origin.x,
+                                  origin.y - text_size.height,
+                                  text_size.width,
+                                  text_size.height);
+    cv::rectangle(vis_img, text_back, text_color, -1);
+    cv::putText(vis_img,
+                text,
+                origin,
+                font_face,
+                font_scale,
+                cv::Scalar(255, 255, 255),
+                thickness);
+    if (FLAGS_show_result || FLAGS_use_camera) {
+      cv::imshow("video_classifier", vis_img);
+    }
+    if (FLAGS_save_result) {
+      video_out.write(vis_img);
+    }
+    std::cout << "Predict label: " << result.category
+              << ", label_id:" << result.category_id
+              << ", score: " << result.score << std::endl;
+  }
+  capture.release();
+  if (FLAGS_save_result) {
+    video_out.release();
+    std::cout << "Visualized output saved as " << video_out_path << std::endl;
+  }
+  if (FLAGS_show_result || FLAGS_use_camera) {
+    cv::destroyAllWindows();
+  }
+  return 0;
+}

deploy/cpp/demo/video_detector.cpp

+//   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <glog/logging.h>
+#include <omp.h>
+
+#include <algorithm>
+#include <chrono>  // NOLINT
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <utility>
+
+#include "include/paddlex/paddlex.h"
+#include "include/paddlex/visualize.h"
+
+#if defined(__arm__) || defined(__aarch64__)
+#include <opencv2/videoio/legacy/constants_c.h>
+#endif
+
+using namespace std::chrono;  // NOLINT
+
+DEFINE_string(model_dir, "", "Path of inference model");
+DEFINE_bool(use_gpu, false, "Infering with GPU or CPU");
+DEFINE_bool(use_trt, false, "Infering with TensorRT");
+DEFINE_int32(gpu_id, 0, "GPU card id");
+DEFINE_bool(use_camera, false, "Infering with Camera");
+DEFINE_int32(camera_id, 0, "Camera id");
+DEFINE_string(video_path, "", "Path of input video");
+DEFINE_bool(show_result, false, "show the result of each frame with a window");
+DEFINE_bool(save_result, true, "save the result of each frame to a video");
+DEFINE_string(key, "", "key of encryption");
+DEFINE_string(save_dir, "output", "Path to save visualized image");
+DEFINE_double(threshold,
+              0.5,
+              "The minimum scores of target boxes which are shown");
+
+int main(int argc, char** argv) {
+  // Parsing command-line
+  google::ParseCommandLineFlags(&argc, &argv, true);
+
+  if (FLAGS_model_dir == "") {
+    std::cerr << "--model_dir need to be defined" << std::endl;
+    return -1;
+  }
+  if (FLAGS_video_path == "" & FLAGS_use_camera == false) {
+    std::cerr << "--video_path or --use_camera need to be defined" << std::endl;
+    return -1;
+  }
+  // Load model
+  PaddleX::Model model;
+  model.Init(FLAGS_model_dir,
+             FLAGS_use_gpu,
+             FLAGS_use_trt,
+             FLAGS_gpu_id,
+             FLAGS_key);
+  // Open video
+  cv::VideoCapture capture;
+  if (FLAGS_use_camera) {
+    capture.open(FLAGS_camera_id);
+    if (!capture.isOpened()) {
+      std::cout << "Can not open the camera "
+                << FLAGS_camera_id << "."
+                << std::endl;
+      return -1;
+    }
+  } else {
+    capture.open(FLAGS_video_path);
+    if (!capture.isOpened()) {
+      std::cout << "Can not open the video "
+                << FLAGS_video_path << "."
+                << std::endl;
+      return -1;
+    }
+  }
+
+  // Create a VideoWriter
+  cv::VideoWriter video_out;
+  std::string video_out_path;
+  if (FLAGS_save_result) {
+    // Get video information: resolution, fps
+    int video_width = static_cast<int>(capture.get(CV_CAP_PROP_FRAME_WIDTH));
+    int video_height = static_cast<int>(capture.get(CV_CAP_PROP_FRAME_HEIGHT));
+    int video_fps = static_cast<int>(capture.get(CV_CAP_PROP_FPS));
+    int video_fourcc;
+    if (FLAGS_use_camera) {
+      video_fourcc = 828601953;
+    } else {
+      video_fourcc = static_cast<int>(capture.get(CV_CAP_PROP_FOURCC));
+    }
+
+    if (FLAGS_use_camera) {
+      time_t now = time(0);
+      video_out_path =
+        PaddleX::generate_save_path(FLAGS_save_dir,
+                                    std::to_string(now) + ".mp4");
+    } else {
+      video_out_path =
+        PaddleX::generate_save_path(FLAGS_save_dir, FLAGS_video_path);
+    }
+    video_out.open(video_out_path.c_str(),
+                   video_fourcc,
+                   video_fps,
+                   cv::Size(video_width, video_height),
+                   true);
+    if (!video_out.isOpened()) {
+      std::cout << "Create video writer failed!" << std::endl;
+      return -1;
+    }
+  }
+
+  PaddleX::DetResult result;
+  cv::Mat frame;
+  int key;
+  while (capture.read(frame)) {
+    if (FLAGS_show_result || FLAGS_use_camera) {
+     key = cv::waitKey(1);
+     // When pressing `ESC`, then exit program and result video is saved
+     if (key == 27) {
+       break;
+     }
+    } else if (frame.empty()) {
+      break;
+    }
+    // Begin to predict
+    model.predict(frame, &result);
+    // Visualize results
+    cv::Mat vis_img =
+        PaddleX::Visualize(frame, result, model.labels, FLAGS_threshold);
+    if (FLAGS_show_result || FLAGS_use_camera) {
+      cv::imshow("video_detector", vis_img);
+    }
+    if (FLAGS_save_result) {
+      video_out.write(vis_img);
+    }
+    result.clear();
+  }
+  capture.release();
+  if (FLAGS_save_result) {
+    std::cout << "Visualized output saved as " << video_out_path << std::endl;
+    video_out.release();
+  }
+  if (FLAGS_show_result || FLAGS_use_camera) {
+    cv::destroyAllWindows();
+  }
+  return 0;
+}

deploy/cpp/demo/video_segmenter.cpp

+//   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <glog/logging.h>
+#include <omp.h>
+
+#include <algorithm>
+#include <chrono>  // NOLINT
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <utility>
+#include <ctime>
+#include "include/paddlex/paddlex.h"
+#include "include/paddlex/visualize.h"
+
+#if defined(__arm__) || defined(__aarch64__)
+#include <opencv2/videoio/legacy/constants_c.h>
+#endif
+
+using namespace std::chrono;  // NOLINT
+
+DEFINE_string(model_dir, "", "Path of inference model");
+DEFINE_bool(use_gpu, false, "Infering with GPU or CPU");
+DEFINE_bool(use_trt, false, "Infering with TensorRT");
+DEFINE_int32(gpu_id, 0, "GPU card id");
+DEFINE_string(key, "", "key of encryption");
+DEFINE_bool(use_camera, false, "Infering with Camera");
+DEFINE_int32(camera_id, 0, "Camera id");
+DEFINE_string(video_path, "", "Path of input video");
+DEFINE_bool(show_result, false, "show the result of each frame with a window");
+DEFINE_bool(save_result, true, "save the result of each frame to a video");
+DEFINE_string(save_dir, "output", "Path to save visualized image");
+
+int main(int argc, char** argv) {
+  // Parsing command-line
+  google::ParseCommandLineFlags(&argc, &argv, true);
+
+  if (FLAGS_model_dir == "") {
+    std::cerr << "--model_dir need to be defined" << std::endl;
+    return -1;
+  }
+  if (FLAGS_video_path == "" & FLAGS_use_camera == false) {
+    std::cerr << "--video_path or --use_camera need to be defined" << std::endl;
+    return -1;
+  }
+
+  // Load model
+  PaddleX::Model model;
+  model.Init(FLAGS_model_dir,
+             FLAGS_use_gpu,
+             FLAGS_use_trt,
+             FLAGS_gpu_id,
+             FLAGS_key);
+  // Open video
+  cv::VideoCapture capture;
+  if (FLAGS_use_camera) {
+    capture.open(FLAGS_camera_id);
+    if (!capture.isOpened()) {
+      std::cout << "Can not open the camera "
+                << FLAGS_camera_id << "."
+                << std::endl;
+      return -1;
+    }
+  } else {
+    capture.open(FLAGS_video_path);
+    if (!capture.isOpened()) {
+      std::cout << "Can not open the video "
+                << FLAGS_video_path << "."
+                << std::endl;
+      return -1;
+    }
+  }
+
+
+  // Create a VideoWriter
+  cv::VideoWriter video_out;
+  std::string video_out_path;
+  if (FLAGS_save_result) {
+    // Get video information: resolution, fps
+    int video_width = static_cast<int>(capture.get(CV_CAP_PROP_FRAME_WIDTH));
+    int video_height = static_cast<int>(capture.get(CV_CAP_PROP_FRAME_HEIGHT));
+    int video_fps = static_cast<int>(capture.get(CV_CAP_PROP_FPS));
+    int video_fourcc;
+    if (FLAGS_use_camera) {
+      video_fourcc = 828601953;
+    } else {
+      video_fourcc = static_cast<int>(capture.get(CV_CAP_PROP_FOURCC));
+    }
+
+    if (FLAGS_use_camera) {
+      time_t now = time(0);
+      video_out_path =
+        PaddleX::generate_save_path(FLAGS_save_dir,
+                                    std::to_string(now) + ".mp4");
+    } else {
+      video_out_path =
+        PaddleX::generate_save_path(FLAGS_save_dir, FLAGS_video_path);
+    }
+    video_out.open(video_out_path.c_str(),
+                   video_fourcc,
+                   video_fps,
+                   cv::Size(video_width, video_height),
+                   true);
+    if (!video_out.isOpened()) {
+      std::cout << "Create video writer failed!" << std::endl;
+      return -1;
+    }
+  }
+
+  PaddleX::SegResult result;
+  cv::Mat frame;
+  int key;
+  while (capture.read(frame)) {
+    if (FLAGS_show_result || FLAGS_use_camera) {
+     key = cv::waitKey(1);
+     // When pressing `ESC`, then exit program and result video is saved
+     if (key == 27) {
+       break;
+     }
+    } else if (frame.empty()) {
+      break;
+    }
+    // Begin to predict
+    model.predict(frame, &result);
+    // Visualize results
+    cv::Mat vis_img = PaddleX::Visualize(frame, result, model.labels);
+    if (FLAGS_show_result || FLAGS_use_camera) {
+      cv::imshow("video_segmenter", vis_img);
+    }
+    if (FLAGS_save_result) {
+      video_out.write(vis_img);
+    }
+    result.clear();
+  }
+  capture.release();
+  if (FLAGS_save_result) {
+    video_out.release();
+    std::cout << "Visualized output saved as " << video_out_path << std::endl;
+  }
+  if (FLAGS_show_result || FLAGS_use_camera) {
+    cv::destroyAllWindows();
+  }
+  return 0;
+}

deploy/cpp/include/paddlex/paddlex.h

@@ -175,7 +175,7 @@ class Model {
    * @return true if predict successfully
    * */
   bool predict(const std::vector<cv::Mat> &im_batch,
-               std::vector<DetResult> *result,
+               std::vector<DetResult> *results,
                int thread_num = 1);
 
   /*
@@ -201,7 +201,7 @@ class Model {
    * @return true if predict successfully
    * */
   bool predict(const std::vector<cv::Mat> &im_batch,
-               std::vector<SegResult> *result,
+               std::vector<SegResult> *results,
                int thread_num = 1);
 
   // model type, include 3 type: classifier, detector, segmenter

deploy/cpp/include/paddlex/transforms.h

@@ -214,6 +214,12 @@ class Padding : public Transform {
         height_ = item["target_size"].as<std::vector<int>>()[1];
       }
     }
+    if (item["im_padding_value"].IsDefined()) {
+      im_value_ = item["im_padding_value"].as<std::vector<float>>();
+    }
+    else {
+      im_value_ = {0, 0, 0};
+    }
   }
   virtual bool Run(cv::Mat* im, ImageBlob* data);
 
@@ -221,6 +227,7 @@ class Padding : public Transform {
   int coarsest_stride_ = -1;
   int width_ = 0;
   int height_ = 0;
+  std::vector<float> im_value_;
 };
 /*
  * @brief

deploy/cpp/include/paddlex/visualize.h

@@ -23,9 +23,9 @@
 #else  // Linux/Unix
 #include <dirent.h>
 // #include <sys/io.h>
-#ifdef __arm__  // for arm
-#include <aarch64-linux-gpu/sys/stat.h>
-#include <aarch64-linux-gpu/sys/types.h>
+#if defined(__arm__) || defined(__aarch64__)  // for arm
+#include <aarch64-linux-gnu/sys/stat.h>
+#include <aarch64-linux-gnu/sys/types.h>
 #else
 #include <sys/stat.h>
 #include <sys/types.h>
@@ -65,13 +65,12 @@ std::vector<int> GenerateColorMap(int num_class);
  * @param img: initial image matrix
  * @param results: the detection result
  * @param labels: label map
- * @param colormap: visualization color map
+ * @param threshold: minimum confidence to display
  * @return visualized image matrix
  * */
 cv::Mat Visualize(const cv::Mat& img,
                      const DetResult& results,
                      const std::map<int, std::string>& labels,
-                     const std::vector<int>& colormap,
                      float threshold = 0.5);
 
 /*
@@ -81,13 +80,11 @@ cv::Mat Visualize(const cv::Mat& img,
  * @param img: initial image matrix
  * @param results: the detection result
  * @param labels: label map
- * @param colormap: visualization color map
  * @return visualized image matrix
  * */
 cv::Mat Visualize(const cv::Mat& img,
                      const SegResult& result,
-                     const std::map<int, std::string>& labels,
-                     const std::vector<int>& colormap);
+                     const std::map<int, std::string>& labels);
 
 /*
  * @brief

deploy/cpp/scripts/bootstrap.sh

@@ -7,12 +7,12 @@ if [ ! -d "./paddlex-encryption" ]; then
 fi
 
 # download pre-compiled opencv lib
-OPENCV_URL=https://paddleseg.bj.bcebos.com/deploy/docker/opencv3gcc4.8.tar.bz2
-if [ ! -d "./deps/opencv3gcc4.8" ]; then
+OPENCV_URL=https://bj.bcebos.com/paddleseg/deploy/opencv3.4.6gcc4.8ffmpeg.tar.gz2
+if [ ! -d "./deps/opencv3.4.6gcc4.8ffmpeg/" ]; then
     mkdir -p deps
     cd deps
     wget -c ${OPENCV_URL}
-    tar xvfj opencv3gcc4.8.tar.bz2
-    rm -rf opencv3gcc4.8.tar.bz2
+    tar xvfj opencv3.4.6gcc4.8ffmpeg.tar.gz2
+    rm -rf opencv3.4.6gcc4.8ffmpeg.tar.gz2
     cd ..
 fi

deploy/cpp/scripts/build.sh

@@ -24,7 +24,7 @@ ENCRYPTION_DIR=$(pwd)/paddlex-encryption
 
 # OPENCV 路径, 如果使用自带预编译版本可不修改
 sh $(pwd)/scripts/bootstrap.sh  # 下载预编译版本的opencv
-OPENCV_DIR=$(pwd)/deps/opencv3gcc4.8/
+OPENCV_DIR=$(pwd)/deps/opencv3.4.6gcc4.8ffmpeg/
 
 # 以下无需改动
 rm -rf build
@@ -42,4 +42,4 @@ cmake .. \
     -DCUDNN_LIB=${CUDNN_LIB} \
     -DENCRYPTION_DIR=${ENCRYPTION_DIR} \
     -DOPENCV_DIR=${OPENCV_DIR}
-make
+make -j16

deploy/cpp/scripts/jetson_build.sh

+# 是否使用GPU(即是否使用 CUDA)
+WITH_GPU=OFF
+# 使用MKL or openblas
+WITH_MKL=OFF
+# 是否集成 TensorRT(仅WITH_GPU=ON 有效)
+WITH_TENSORRT=OFF
+# TensorRT 的路径，如果需要集成TensorRT，需修改为您实际安装的TensorRT路径
+TENSORRT_DIR=/root/projects/TensorRT/
+# Paddle 预测库路径, 请修改为您实际安装的预测库路径
+PADDLE_DIR=/root/projects/fluid_inference
+# Paddle 的预测库是否使用静态库来编译
+# 使用TensorRT时，Paddle的预测库通常为动态库
+WITH_STATIC_LIB=OFF
+# CUDA 的 lib 路径
+CUDA_LIB=/usr/local/cuda/lib64
+# CUDNN 的 lib 路径
+CUDNN_LIB=/usr/lib/aarch64-linux-gnu
+
+# 以下无需改动
+rm -rf build
+mkdir -p build
+cd build
+cmake .. \
+    -DWITH_GPU=${WITH_GPU} \
+    -DWITH_MKL=${WITH_MKL} \
+    -DWITH_TENSORRT=${WITH_TENSORRT} \
+    -DTENSORRT_DIR=${TENSORRT_DIR} \
+    -DPADDLE_DIR=${PADDLE_DIR} \
+    -DWITH_STATIC_LIB=${WITH_STATIC_LIB} \
+    -DCUDA_LIB=${CUDA_LIB} \
+    -DCUDNN_LIB=${CUDNN_LIB}
+make

deploy/cpp/src/paddlex.cpp

@@ -65,7 +65,11 @@ void Model::create_predictor(const std::string& model_dir,
   config.SwitchUseFeedFetchOps(false);
   config.SwitchSpecifyInputNames(true);
   // 开启图优化
+#if defined(__arm__) || defined(__aarch64__)
+  config.SwitchIrOptim(false);
+#else
   config.SwitchIrOptim(use_ir_optim);
+#endif
   // 开启内存优化
   config.EnableMemoryOptim();
   if (use_trt) {
@@ -225,6 +229,8 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
   outputs_.resize(size);
   output_tensor->copy_to_cpu(outputs_.data());
   // 对模型输出结果进行后处理
+  (*results).clear();
+  (*results).resize(batch_size);
   int single_batch_size = size / batch_size;
   for (int i = 0; i < batch_size; ++i) {
     auto start_ptr = std::begin(outputs_);
@@ -343,7 +349,7 @@ bool Model::predict(const cv::Mat& im, DetResult* result) {
 }
 
 bool Model::predict(const std::vector<cv::Mat>& im_batch,
-                    std::vector<DetResult>* result,
+                    std::vector<DetResult>* results,
                     int thread_num) {
   for (auto& inputs : inputs_batch_) {
     inputs.clear();
@@ -467,6 +473,8 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
   auto lod_vector = output_box_tensor->lod();
   int num_boxes = size / 6;
   // 解析预测框box
+  (*results).clear();
+  (*results).resize(batch_size);
   for (int i = 0; i < lod_vector[0].size() - 1; ++i) {
     for (int j = lod_vector[0][i]; j < lod_vector[0][i + 1]; ++j) {
       Box box;
@@ -480,7 +488,7 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
       float w = xmax - xmin + 1;
       float h = ymax - ymin + 1;
       box.coordinate = {xmin, ymin, w, h};
-      (*result)[i].boxes.push_back(std::move(box));
+      (*results)[i].boxes.push_back(std::move(box));
     }
   }
 
@@ -499,9 +507,9 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
     output_mask_tensor->copy_to_cpu(output_mask.data());
     int mask_idx = 0;
     for (int i = 0; i < lod_vector[0].size() - 1; ++i) {
-      (*result)[i].mask_resolution = output_mask_shape[2];
-      for (int j = 0; j < (*result)[i].boxes.size(); ++j) {
-        Box* box = &(*result)[i].boxes[j];
+      (*results)[i].mask_resolution = output_mask_shape[2];
+      for (int j = 0; j < (*results)[i].boxes.size(); ++j) {
+        Box* box = &(*results)[i].boxes[j];
         int category_id = box->category_id;
         auto begin_mask = output_mask.begin() +
                           (mask_idx * classes + category_id) * mask_pixels;
@@ -624,7 +632,7 @@ bool Model::predict(const cv::Mat& im, SegResult* result) {
 }
 
 bool Model::predict(const std::vector<cv::Mat>& im_batch,
-                    std::vector<SegResult>* result,
+                    std::vector<SegResult>* results,
                     int thread_num) {
   for (auto& inputs : inputs_batch_) {
     inputs.clear();
@@ -647,8 +655,8 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
   }
 
   int batch_size = im_batch.size();
-  (*result).clear();
-  (*result).resize(batch_size);
+  (*results).clear();
+  (*results).resize(batch_size);
   int h = inputs_batch_[0].new_im_size_[0];
   int w = inputs_batch_[0].new_im_size_[1];
   auto im_tensor = predictor_->GetInputTensor("image");
@@ -680,14 +688,14 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
 
   int single_batch_size = size / batch_size;
   for (int i = 0; i < batch_size; ++i) {
-    (*result)[i].label_map.data.resize(single_batch_size);
-    (*result)[i].label_map.shape.push_back(1);
+    (*results)[i].label_map.data.resize(single_batch_size);
+    (*results)[i].label_map.shape.push_back(1);
     for (int j = 1; j < output_label_shape.size(); ++j) {
-      (*result)[i].label_map.shape.push_back(output_label_shape[j]);
+      (*results)[i].label_map.shape.push_back(output_label_shape[j]);
     }
     std::copy(output_labels_iter + i * single_batch_size,
               output_labels_iter + (i + 1) * single_batch_size,
-              (*result)[i].label_map.data.data());
+              (*results)[i].label_map.data.data());
   }
 
   // 获取预测置信度scoremap
@@ -704,29 +712,29 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
 
   int single_batch_score_size = size / batch_size;
   for (int i = 0; i < batch_size; ++i) {
-    (*result)[i].score_map.data.resize(single_batch_score_size);
-    (*result)[i].score_map.shape.push_back(1);
+    (*results)[i].score_map.data.resize(single_batch_score_size);
+    (*results)[i].score_map.shape.push_back(1);
     for (int j = 1; j < output_score_shape.size(); ++j) {
-      (*result)[i].score_map.shape.push_back(output_score_shape[j]);
+      (*results)[i].score_map.shape.push_back(output_score_shape[j]);
     }
     std::copy(output_scores_iter + i * single_batch_score_size,
               output_scores_iter + (i + 1) * single_batch_score_size,
-              (*result)[i].score_map.data.data());
+              (*results)[i].score_map.data.data());
   }
 
   // 解析输出结果到原图大小
   for (int i = 0; i < batch_size; ++i) {
-    std::vector<uint8_t> label_map((*result)[i].label_map.data.begin(),
-                                   (*result)[i].label_map.data.end());
-    cv::Mat mask_label((*result)[i].label_map.shape[1],
-                       (*result)[i].label_map.shape[2],
+    std::vector<uint8_t> label_map((*results)[i].label_map.data.begin(),
+                                   (*results)[i].label_map.data.end());
+    cv::Mat mask_label((*results)[i].label_map.shape[1],
+                       (*results)[i].label_map.shape[2],
                        CV_8UC1,
                        label_map.data());
 
-    cv::Mat mask_score((*result)[i].score_map.shape[2],
-                       (*result)[i].score_map.shape[3],
+    cv::Mat mask_score((*results)[i].score_map.shape[2],
+                       (*results)[i].score_map.shape[3],
                        CV_32FC1,
-                       (*result)[i].score_map.data.data());
+                       (*results)[i].score_map.data.data());
     int idx = 1;
     int len_postprocess = inputs_batch_[i].im_size_before_resize_.size();
     for (std::vector<std::string>::reverse_iterator iter =
@@ -762,12 +770,12 @@ bool Model::predict(const std::vector<cv::Mat>& im_batch,
       }
       ++idx;
     }
-    (*result)[i].label_map.data.assign(mask_label.begin<uint8_t>(),
+    (*results)[i].label_map.data.assign(mask_label.begin<uint8_t>(),
                                        mask_label.end<uint8_t>());
-    (*result)[i].label_map.shape = {mask_label.rows, mask_label.cols};
-    (*result)[i].score_map.data.assign(mask_score.begin<float>(),
+    (*results)[i].label_map.shape = {mask_label.rows, mask_label.cols};
+    (*results)[i].score_map.data.assign(mask_score.begin<float>(),
                                        mask_score.end<float>());
-    (*result)[i].score_map.shape = {mask_score.rows, mask_score.cols};
+    (*results)[i].score_map.shape = {mask_score.rows, mask_score.cols};
   }
   return true;
 }

deploy/cpp/src/transforms.cpp

@@ -15,6 +15,7 @@
 #include <iostream>
 #include <string>
 #include <vector>
+#include <math.h>
 
 #include "include/paddlex/transforms.h"
 
@@ -60,8 +61,8 @@ bool ResizeByShort::Run(cv::Mat* im, ImageBlob* data) {
   data->reshape_order_.push_back("resize");
 
   float scale = GenerateScale(*im);
-  int width = static_cast<int>(scale * im->cols);
-  int height = static_cast<int>(scale * im->rows);
+  int width = static_cast<int>(round(scale * im->cols));
+  int height = static_cast<int>(round(scale * im->rows));
   cv::resize(*im, *im, cv::Size(width, height), 0, 0, cv::INTER_LINEAR);
 
   data->new_im_size_[0] = im->rows;
@@ -110,8 +111,9 @@ bool Padding::Run(cv::Mat* im, ImageBlob* data) {
               << ", but they should be greater than 0." << std::endl;
     return false;
   }
+  cv::Scalar value = cv::Scalar(im_value_[0], im_value_[1], im_value_[2]);
   cv::copyMakeBorder(
-      *im, *im, 0, padding_h, 0, padding_w, cv::BORDER_CONSTANT, cv::Scalar(0));
+      *im, *im, 0, padding_h, 0, padding_w, cv::BORDER_CONSTANT, value);
   data->new_im_size_[0] = im->rows;
   data->new_im_size_[1] = im->cols;
   return true;

deploy/cpp/src/visualize.cpp

@@ -34,8 +34,8 @@ std::vector<int> GenerateColorMap(int num_class) {
 cv::Mat Visualize(const cv::Mat& img,
                      const DetResult& result,
                      const std::map<int, std::string>& labels,
-                     const std::vector<int>& colormap,
                      float threshold) {
+  auto colormap = GenerateColorMap(labels.size());
   cv::Mat vis_img = img.clone();
   auto boxes = result.boxes;
   for (int i = 0; i < boxes.size(); ++i) {
@@ -107,8 +107,8 @@ cv::Mat Visualize(const cv::Mat& img,
 
 cv::Mat Visualize(const cv::Mat& img,
                      const SegResult& result,
-                     const std::map<int, std::string>& labels,
-                     const std::vector<int>& colormap) {
+                     const std::map<int, std::string>& labels) {
+  auto colormap = GenerateColorMap(labels.size());
   std::vector<uint8_t> label_map(result.label_map.data.begin(),
                                  result.label_map.data.end());
   cv::Mat mask(result.label_map.shape[0],

deploy/lite/android/demo/.gitignore

+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

deploy/lite/android/demo/app/.gitignore

+/build

deploy/lite/android/demo/app/build.gradle

+import java.security.MessageDigest
+
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.baidu.paddlex.lite.demo"
+        minSdkVersion 15
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(include: ['*.aar'], dir: 'libs')
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'com.android.support:design:28.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}
+
+
+def paddlexAndroidSdk = 'https://bj.bcebos.com/paddlex/deploy/lite/paddlex_lite_11cbd50e.tar.gz'
+
+task downloadAndExtractPaddleXAndroidSdk(type: DefaultTask) {
+    doFirst {
+        println "Downloading and extracting PaddleX Android SDK"}
+    doLast {
+        // Prepare cache folder for sdk
+        if (!file("cache").exists()) {
+            mkdir "cache"
+        }
+        // Generate cache name for sdk
+        MessageDigest messageDigest = MessageDigest.getInstance('MD5')
+        messageDigest.update(paddlexAndroidSdk.bytes)
+        String cacheName = new BigInteger(1, messageDigest.digest()).toString(32)
+        // Download sdk
+        if (!file("cache/${cacheName}.tar.gz").exists()) {
+            ant.get(src: paddlexAndroidSdk, dest: file("cache/${cacheName}.tar.gz"))
+        }
+        // Unpack sdk
+        copy {
+            from tarTree("cache/${cacheName}.tar.gz")
+            into "cache/${cacheName}"
+        }
+        // Copy sdk
+        if (!file("libs/paddlex.aar").exists()) {
+            copy {
+                from "cache/${cacheName}/paddlex.aar"
+                into "libs"
+            }
+        }
+    }
+}
+
+preBuild.dependsOn downloadAndExtractPaddleXAndroidSdk
+
+def paddleXLiteModel = 'https://bj.bcebos.com/paddlex/deploy/lite/mobilenetv2_imagenet_lite2.6.1.tar.gz'
+task downloadAndExtractPaddleXLiteModel(type: DefaultTask) {
+    doFirst {
+        println "Downloading and extracting PaddleX Android SDK"}
+
+    doLast {
+        // Prepare cache folder for model
+        if (!file("cache").exists()) {
+            mkdir "cache"
+        }
+        // Generate cache name for model
+        MessageDigest messageDigest = MessageDigest.getInstance('MD5')
+        messageDigest.update(paddleXLiteModel.bytes)
+        String cacheName = new BigInteger(1, messageDigest.digest()).toString(32)
+        // Download sdk
+        if (!file("cache/${cacheName}.tar.gz").exists()) {
+            ant.get(src: paddleXLiteModel, dest: file("cache/${cacheName}.tar.gz"))
+        }
+
+        // Unpack model
+        copy {
+            from tarTree("cache/${cacheName}.tar.gz")
+            into "cache/${cacheName}"
+        }
+
+        // Copy model.nb
+        if (!file("src/main/assets/model/model.nb").exists()) {
+            copy {
+                from "cache/${cacheName}/model.nb"
+                into "src/main/assets/model/"
+            }
+        }
+        // Copy config file model.yml
+        if (!file("src/main/assets/config/model.yml").exists()) {
+            copy {
+                from "cache/${cacheName}/model.yml"
+                into "src/main/assets/config/"
+            }
+        }
+        // Copy config file model.yml
+        if (!file("src/main/assets/images/test.jpg").exists()) {
+            copy {
+                from "cache/${cacheName}/test.jpg"
+                into "src/main/assets/images/"
+            }
+        }
+    }
+
+}
+
+preBuild.dependsOn downloadAndExtractPaddleXLiteModel

deploy/lite/android/demo/app/proguard-rules.pro

+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

deploy/lite/android/demo/app/src/androidTest/java/com/baidu/paddlex/lite/demo/ExampleInstrumentedTest.java

+package com.baidu.paddlex.lite.demo;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.baidu.paddlex.config.ConfigParser;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws IOException {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+        AssetManager ass = appContext.getAssets();
+        assertEquals("com.baidu.paddlex.lite.demo", appContext.getPackageName());
+    }
+}

deploy/lite/android/demo/app/src/main/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.baidu.paddlex.lite.demo">
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:largeHeap="true"
+        android:theme="@style/AppTheme">
+        <activity android:name="com.baidu.paddlex.lite.demo.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name="com.baidu.paddlex.lite.demo.SettingsActivity"
+            android:label="Settings"></activity>
+    </application>
+
+</manifest>
\ No newline at end of file

deploy/lite/android/demo/app/src/main/java/com/baidu/paddlex/lite/demo/AppCompatPreferenceActivity.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.lite.demo;
+
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+import android.support.annotation.LayoutRes;
+import android.support.annotation.Nullable;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatDelegate;
+import android.support.v7.widget.Toolbar;
+import android.view.MenuInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * A {@link android.preference.PreferenceActivity} which implements and proxies the necessary calls
+ * to be used with AppCompat.
+ * <p>
+ * This technique can be used with an {@link android.app.Activity} class, not just
+ * {@link android.preference.PreferenceActivity}.
+ */
+
+public abstract class AppCompatPreferenceActivity extends PreferenceActivity {
+    private AppCompatDelegate mDelegate;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        getDelegate().installViewFactory();
+        getDelegate().onCreate(savedInstanceState);
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected void onPostCreate(Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        getDelegate().onPostCreate(savedInstanceState);
+    }
+
+    public ActionBar getSupportActionBar() {
+        return getDelegate().getSupportActionBar();
+    }
+
+    public void setSupportActionBar(@Nullable Toolbar toolbar) {
+        getDelegate().setSupportActionBar(toolbar);
+    }
+
+    @Override
+    public MenuInflater getMenuInflater() {
+        return getDelegate().getMenuInflater();
+    }
+
+    @Override
+    public void setContentView(@LayoutRes int layoutResID) {
+        getDelegate().setContentView(layoutResID);
+    }
+
+    @Override
+    public void setContentView(View view) {
+        getDelegate().setContentView(view);
+    }
+
+    @Override
+    public void setContentView(View view, ViewGroup.LayoutParams params) {
+        getDelegate().setContentView(view, params);
+    }
+
+    @Override
+    public void addContentView(View view, ViewGroup.LayoutParams params) {
+        getDelegate().addContentView(view, params);
+    }
+
+    @Override
+    protected void onPostResume() {
+        super.onPostResume();
+        getDelegate().onPostResume();
+    }
+
+    @Override
+    protected void onTitleChanged(CharSequence title, int color) {
+        super.onTitleChanged(title, color);
+        getDelegate().setTitle(title);
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        getDelegate().onConfigurationChanged(newConfig);
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        getDelegate().onStop();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        getDelegate().onDestroy();
+    }
+
+    public void invalidateOptionsMenu() {
+        getDelegate().invalidateOptionsMenu();
+    }
+
+    private AppCompatDelegate getDelegate() {
+        if (mDelegate == null) {
+            mDelegate = AppCompatDelegate.create(this, null);
+        }
+        return mDelegate;
+    }
+}

deploy/lite/android/demo/app/src/main/java/com/baidu/paddlex/lite/demo/MainActivity.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.lite.demo;
+
+import android.Manifest;
+import android.app.ProgressDialog;
+import android.content.ContentResolver;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Message;
+import android.preference.PreferenceManager;
+import android.provider.MediaStore;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AppCompatActivity;
+import android.text.method.ScrollingMovementMethod;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+import com.baidu.paddlex.Predictor;
+import com.baidu.paddlex.Utils;
+import com.baidu.paddlex.config.ConfigParser;
+import com.baidu.paddlex.postprocess.ClsResult;
+import com.baidu.paddlex.postprocess.DetResult;
+import com.baidu.paddlex.postprocess.SegResult;
+import com.baidu.paddlex.visual.Visualize;
+import org.opencv.core.Mat;
+import org.opencv.imgcodecs.Imgcodecs;
+import org.opencv.imgproc.Imgproc;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class MainActivity extends AppCompatActivity {
+    public static final int OPEN_GALLERY_REQUEST_CODE = 0;
+    public static final int TAKE_PHOTO_REQUEST_CODE = 1;
+    public static final int REQUEST_LOAD_MODEL = 0;
+    public static final int REQUEST_RUN_MODEL = 1;
+    public static final int RESPONSE_LOAD_MODEL_SUCCESSED = 0;
+    public static final int RESPONSE_LOAD_MODEL_FAILED = 1;
+    public static final int RESPONSE_RUN_MODEL_SUCCESSED = 2;
+    public static final int RESPONSE_RUN_MODEL_FAILED = 3;
+    private static final String TAG = MainActivity.class.getSimpleName();
+    protected ProgressDialog pbLoadModel = null;
+    protected ProgressDialog pbRunModel = null;
+
+    protected Handler receiver = null; // receive messages from worker thread
+    protected Handler sender = null; // send command to worker thread
+    protected HandlerThread worker = null; // worker thread to load&run model
+
+    protected TextView tvInputSetting;
+    protected ImageView ivInputImage;
+    protected TextView tvOutputResult;
+    protected TextView tvInferenceTime;
+    private Button predictButton;
+    protected String testImagePathFromAsset;
+    protected String testYamlPathFromAsset;
+    protected String testModelPathFromAsset;
+
+    // Predictor
+    protected Predictor predictor = new Predictor();
+    // model config
+    protected ConfigParser configParser = new ConfigParser();
+    // Visualize
+    protected Visualize visualize = new Visualize();
+    // Predict Mat of Opencv
+    protected Mat predictMat;
+
+
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        receiver = new Handler() {
+            @Override
+            public void handleMessage(Message msg) {
+                switch (msg.what) {
+                    case RESPONSE_LOAD_MODEL_SUCCESSED:
+                        pbLoadModel.dismiss();
+                        Toast.makeText(MainActivity.this, "Load model successfully!", Toast.LENGTH_SHORT).show();
+                        break;
+                    case RESPONSE_LOAD_MODEL_FAILED:
+                        pbLoadModel.dismiss();
+                        Toast.makeText(MainActivity.this, "Load model failed!", Toast.LENGTH_SHORT).show();
+                        break;
+                    case RESPONSE_RUN_MODEL_SUCCESSED:
+                        pbRunModel.dismiss();
+                        onRunModelSuccessed();
+                        break;
+                    case RESPONSE_RUN_MODEL_FAILED:
+                        pbRunModel.dismiss();
+                        Toast.makeText(MainActivity.this, "Run model failed!", Toast.LENGTH_SHORT).show();
+                        onRunModelFailed();
+                        break;
+                    default:
+                        break;
+                }
+            }
+        };
+        worker = new HandlerThread("Predictor Worker");
+        worker.start();
+        sender = new Handler(worker.getLooper()) {
+            public void handleMessage(Message msg) {
+                switch (msg.what) {
+                    case REQUEST_LOAD_MODEL:
+                        // load model and reload test image
+                        if (onLoadModel()) {
+                            receiver.sendEmptyMessage(RESPONSE_LOAD_MODEL_SUCCESSED);
+                        } else {
+                            receiver.sendEmptyMessage(RESPONSE_LOAD_MODEL_FAILED);
+                        }
+                        break;
+                    case REQUEST_RUN_MODEL:
+                        // run model if model is loaded
+                        if (onRunModel()) {
+                            receiver.sendEmptyMessage(RESPONSE_RUN_MODEL_SUCCESSED);
+                        } else {
+                            receiver.sendEmptyMessage(RESPONSE_RUN_MODEL_FAILED);
+                        }
+                        break;
+                    default:
+                        break;
+                }
+            }
+        };
+
+        tvInputSetting = findViewById(R.id.tv_input_setting);
+        ivInputImage = findViewById(R.id.iv_input_image);
+        predictButton = findViewById(R.id.iv_predict_button);
+        tvInferenceTime = findViewById(R.id.tv_inference_time);
+        tvOutputResult = findViewById(R.id.tv_output_result);
+        tvInputSetting.setMovementMethod(ScrollingMovementMethod.getInstance());
+        tvOutputResult.setMovementMethod(ScrollingMovementMethod.getInstance());
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+        String image_path = sharedPreferences.getString(getString(R.string.IMAGE_PATH_KEY),
+                getString(R.string.IMAGE_PATH_DEFAULT));
+        Utils.initialOpencv();
+        loadTestImageFromAsset(image_path);
+        predictButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if(predictor.isLoaded()){
+                    onLoadModelSuccessed();
+                }
+            }
+        });
+
+    }
+
+    public boolean onLoadModel() {
+        return predictor.init(configParser);
+    }
+
+    public boolean onRunModel() {
+        return predictor.isLoaded() && predictor.predict();
+    }
+
+    public void onRunModelFailed() {
+    }
+
+    public void loadModel() {
+        pbLoadModel = ProgressDialog.show(this, "", "Loading model...", false, false);
+        sender.sendEmptyMessage(REQUEST_LOAD_MODEL);
+    }
+
+    public void runModel() {
+        pbRunModel = ProgressDialog.show(this, "", "Running model...", false, false);
+        sender.sendEmptyMessage(REQUEST_RUN_MODEL);
+    }
+
+    public void onLoadModelSuccessed() {
+        if (predictMat != null && predictor.isLoaded()) {
+            int w = predictMat.width();
+            int h = predictMat.height();
+            int c = predictMat.channels();
+            predictor.setInputMat(predictMat);
+            runModel();
+        }
+    }
+
+    public void onRunModelSuccessed() {
+        // obtain results and update UI
+        tvInferenceTime.setText("Inference time: " + predictor.getInferenceTime() + " ms");
+
+        if (configParser.getModelType().equalsIgnoreCase("segmenter")) {
+            SegResult segResult = predictor.getSegResult();
+            Mat maskMat = visualize.draw(segResult, predictMat.clone(), predictor.getImageBlob(), 1);
+            Imgproc.cvtColor(maskMat, maskMat, Imgproc.COLOR_BGRA2RGBA);
+            Bitmap outputImage = Bitmap.createBitmap(maskMat.width(), maskMat.height(), Bitmap.Config.ARGB_8888);
+            org.opencv.android.Utils.matToBitmap(maskMat, outputImage);
+            if (outputImage != null) {
+                ivInputImage.setImageBitmap(outputImage);
+            }
+        } else if (configParser.getModelType().equalsIgnoreCase("detector")) {
+            DetResult detResult = predictor.getDetResult();
+            Mat roiMat  = visualize.draw(detResult,  predictMat.clone());
+            Imgproc.cvtColor(roiMat, roiMat, Imgproc.COLOR_BGR2RGB);
+            Bitmap outputImage = Bitmap.createBitmap(roiMat.width(),roiMat.height(), Bitmap.Config.ARGB_8888);
+            org.opencv.android.Utils.matToBitmap(roiMat,outputImage);
+            if (outputImage != null) {
+                ivInputImage.setImageBitmap(outputImage);
+            }
+        } else if (configParser.getModelType().equalsIgnoreCase("classifier")) {
+            ClsResult clsResult = predictor.getClsResult();
+            if (configParser.getLabeList().size() > 0) {
+                String outputResult = "Top1: " + clsResult.getCategory() + " - " + String.format("%.3f", clsResult.getScore());
+                tvOutputResult.setText(outputResult);
+                tvOutputResult.scrollTo(0, 0);
+            }
+        }
+    }
+
+    public void onMatChanged(Mat mat) {
+        this.predictMat = mat.clone();
+    }
+
+    public void onImageChanged(Bitmap image) {
+        ivInputImage.setImageBitmap(image);
+        tvOutputResult.setText("");
+        tvInferenceTime.setText("Inference time: -- ms");
+    }
+
+    public void onSettingsClicked() {
+        startActivity(new Intent(MainActivity.this, SettingsActivity.class));
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu_action_options, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                break;
+            case R.id.open_gallery:
+                if (requestAllPermissions()) {
+                    openGallery();
+                }
+                break;
+            case R.id.take_photo:
+                if (requestAllPermissions()) {
+                    takePhoto();
+                }
+                break;
+            case R.id.settings:
+                if (requestAllPermissions()) {
+                    // make sure we have SDCard r&w permissions to load model from SDCard
+                    onSettingsClicked();
+                }
+                break;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
+                                           @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (grantResults[0] != PackageManager.PERMISSION_GRANTED || grantResults[1] != PackageManager.PERMISSION_GRANTED) {
+            Toast.makeText(this, "Permission Denied", Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (resultCode == RESULT_OK && data != null) {
+            switch (requestCode) {
+                case OPEN_GALLERY_REQUEST_CODE:
+                    try {
+                        ContentResolver resolver = getContentResolver();
+                        Uri uri = data.getData();
+                        Bitmap image = MediaStore.Images.Media.getBitmap(resolver, uri);
+                        String[] proj = {MediaStore.Images.Media.DATA};
+                        Cursor cursor = managedQuery(uri, proj, null, null, null);
+                        cursor.moveToFirst();
+                        int columnIndex = cursor.getColumnIndex(proj[0]);
+                        String imgDecodableString = cursor.getString(columnIndex);
+                        File file = new File(imgDecodableString);
+                        Mat mat = Imgcodecs.imread(file.getAbsolutePath(),Imgcodecs.IMREAD_COLOR);
+                        onImageChanged(image);
+                        onMatChanged(mat);
+                    } catch (IOException e) {
+                        Log.e(TAG, e.toString());
+                    }
+                    break;
+                case TAKE_PHOTO_REQUEST_CODE:
+                    Bitmap image = (Bitmap) data.getParcelableExtra("data");
+                    Mat mat = new Mat();
+                    org.opencv.android.Utils.bitmapToMat(image, mat);
+                    Imgproc.cvtColor(mat, mat, Imgproc.COLOR_RGBA2BGR);
+                    onImageChanged(image);
+                    onMatChanged(mat);
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+    private boolean requestAllPermissions() {
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this,
+                Manifest.permission.CAMERA)
+                != PackageManager.PERMISSION_GRANTED) {
+            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE,
+                            Manifest.permission.CAMERA},
+                    0);
+            return false;
+        }
+        return true;
+    }
+
+    private void openGallery() {
+        Intent intent = new Intent(Intent.ACTION_PICK, null);
+        intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
+        startActivityForResult(intent, OPEN_GALLERY_REQUEST_CODE);
+    }
+
+    private void takePhoto() {
+        Intent takePhotoIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+        if (takePhotoIntent.resolveActivity(getPackageManager()) != null) {
+            startActivityForResult(takePhotoIntent, TAKE_PHOTO_REQUEST_CODE);
+        }
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        boolean isLoaded = predictor.isLoaded();
+        menu.findItem(R.id.open_gallery).setEnabled(isLoaded);
+        menu.findItem(R.id.take_photo).setEnabled(isLoaded);
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    protected void onResume() {
+        Log.i(TAG, "begin onResume");
+        super.onResume();
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+        boolean settingsChanged = false;
+        boolean testImageChanged = false;
+        String modelPath = sharedPreferences.getString(getString(R.string.MODEL_PATH_KEY),
+                getString(R.string.MODEL_PATH_DEFAULT));
+        settingsChanged |= !modelPath.equalsIgnoreCase(testModelPathFromAsset);
+        String yamlPath = sharedPreferences.getString(getString(R.string.YAML_PATH_KEY),
+                getString(R.string.YAML_PATH_DEFAULT));
+        settingsChanged |= !yamlPath.equalsIgnoreCase(testYamlPathFromAsset);
+        int cpuThreadNum = Integer.parseInt(sharedPreferences.getString(getString(R.string.CPU_THREAD_NUM_KEY),
+                getString(R.string.CPU_THREAD_NUM_DEFAULT)));
+        settingsChanged |= cpuThreadNum != configParser.getCpuThreadNum();
+        String cpuPowerMode = sharedPreferences.getString(getString(R.string.CPU_POWER_MODE_KEY),
+                getString(R.string.CPU_POWER_MODE_DEFAULT));
+        settingsChanged |= !cpuPowerMode.equalsIgnoreCase(configParser.getCpuPowerMode());
+        String imagePath = sharedPreferences.getString(getString(R.string.IMAGE_PATH_KEY),
+                getString(R.string.IMAGE_PATH_DEFAULT));
+        testImageChanged |= !imagePath.equalsIgnoreCase(testImagePathFromAsset);
+
+        testYamlPathFromAsset = yamlPath;
+        testModelPathFromAsset = modelPath;
+        if (settingsChanged) {
+            try {
+                String realModelPath = modelPath;
+                if (!modelPath.substring(0, 1).equals("/")) {
+                    String modelFileName = Utils.getFileNameFromString(modelPath);
+                    realModelPath = this.getCacheDir() + File.separator + modelFileName;
+                    Utils.copyFileFromAssets(this, modelPath, realModelPath);
+                }
+                String realYamlPath = yamlPath;
+                if (!yamlPath.substring(0, 1).equals("/")) {
+                    String yamlFileName = Utils.getFileNameFromString(yamlPath);
+                    realYamlPath = this.getCacheDir() + File.separator + yamlFileName;
+                    Utils.copyFileFromAssets(this, yamlPath, realYamlPath);
+                }
+                configParser.init(realModelPath, realYamlPath, cpuThreadNum, cpuPowerMode);
+                visualize.init(configParser.getNumClasses());
+            } catch (IOException e) {
+                e.printStackTrace();
+                Toast.makeText(MainActivity.this, "Load config failed!", Toast.LENGTH_SHORT).show();
+            }
+            // update UI
+            tvInputSetting.setText("Model: " + configParser.getModel()+ "\n" + "CPU" +
+                    " Thread Num: " + Integer.toString(configParser.getCpuThreadNum()) + "\n" + "CPU Power Mode: " + configParser.getCpuPowerMode());
+            tvInputSetting.scrollTo(0, 0);
+            // reload model if configure has been changed
+            loadModel();
+        }
+
+        if (testImageChanged){
+            loadTestImageFromAsset(imagePath);
+        }
+    }
+
+    public void loadTestImageFromAsset(String imagePath){
+        if (imagePath.isEmpty()) {
+            return;
+        }
+        // read test image file from custom file_paths if the first character of mode file_paths is '/', otherwise read test
+        // image file from assets
+        testImagePathFromAsset = imagePath;
+        if (!imagePath.substring(0, 1).equals("/")) {
+            InputStream imageStream = null;
+            try {
+                imageStream = getAssets().open(imagePath);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            onImageChanged(BitmapFactory.decodeStream(imageStream));
+            String realPath;
+            String imageFileName = Utils.getFileNameFromString(imagePath);
+            realPath = this.getCacheDir() + File.separator + imageFileName;
+            Utils.copyFileFromAssets(this, imagePath, realPath);
+            onMatChanged(Imgcodecs.imread(realPath, Imgcodecs.IMREAD_COLOR));
+        } else {
+            if (!new File(imagePath).exists()) {
+                return;
+            }
+            onMatChanged(Imgcodecs.imread(imagePath, Imgcodecs.IMREAD_COLOR));
+            onImageChanged( BitmapFactory.decodeFile(imagePath));
+        }
+    }
+
+    @Override
+    protected void onDestroy() {
+        if (predictor != null) {
+            predictor.releaseModel();
+        }
+        worker.quit();
+        super.onDestroy();
+    }
+}
\ No newline at end of file

deploy/lite/android/demo/app/src/main/java/com/baidu/paddlex/lite/demo/SettingsActivity.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.lite.demo;
+
+import com.baidu.paddlex.Utils;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.CheckBoxPreference;
+import android.preference.EditTextPreference;
+import android.preference.ListPreference;
+import android.support.v7.app.ActionBar;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SettingsActivity extends AppCompatPreferenceActivity implements SharedPreferences.OnSharedPreferenceChangeListener {
+    ListPreference lpChoosePreInstalledModel = null;
+    CheckBoxPreference cbEnableCustomSettings = null;
+    EditTextPreference etModelPath = null;
+    EditTextPreference etYamlPath = null;
+    EditTextPreference etImagePath = null;
+    ListPreference lpCPUThreadNum = null;
+    ListPreference lpCPUPowerMode = null;
+
+    List<String> preInstalledModelPaths = null;
+    List<String> preInstalledYamlPaths = null;
+    List<String> preInstalledImagePaths = null;
+    List<String> preInstalledCPUThreadNums = null;
+    List<String> preInstalledCPUPowerModes = null;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        addPreferencesFromResource(R.xml.settings);
+        ActionBar supportActionBar = getSupportActionBar();
+        if (supportActionBar != null) {
+            supportActionBar.setDisplayHomeAsUpEnabled(true);
+        }
+
+        // initialized pre-installed models
+        preInstalledModelPaths = new ArrayList<String>();
+        preInstalledYamlPaths = new ArrayList<String>();
+        preInstalledImagePaths = new ArrayList<String>();
+        preInstalledCPUThreadNums = new ArrayList<String>();
+        preInstalledCPUPowerModes = new ArrayList<String>();
+        preInstalledModelPaths.add(getString(R.string.MODEL_PATH_DEFAULT));
+        preInstalledYamlPaths.add(getString(R.string.YAML_PATH_DEFAULT));
+        preInstalledImagePaths.add(getString(R.string.IMAGE_PATH_DEFAULT));
+        preInstalledCPUThreadNums.add(getString(R.string.CPU_THREAD_NUM_DEFAULT));
+        preInstalledCPUPowerModes.add(getString(R.string.CPU_POWER_MODE_DEFAULT));
+        // initialize UI components
+        lpChoosePreInstalledModel =
+                (ListPreference) findPreference(getString(R.string.CHOOSE_PRE_INSTALLED_MODEL_KEY));
+        String[] preInstalledModelNames = new String[preInstalledModelPaths.size()];
+        for (int i = 0; i < preInstalledModelPaths.size(); i++) {
+            preInstalledModelNames[i] =
+                    preInstalledModelPaths.get(i).substring(preInstalledModelPaths.get(i).lastIndexOf("/") + 1);
+        }
+        lpChoosePreInstalledModel.setEntries(preInstalledModelNames);
+        lpChoosePreInstalledModel.setEntryValues(preInstalledModelPaths.toArray(new String[preInstalledModelPaths.size()]));
+        cbEnableCustomSettings =
+                (CheckBoxPreference) findPreference(getString(R.string.ENABLE_CUSTOM_SETTINGS_KEY));
+        etModelPath = (EditTextPreference) findPreference(getString(R.string.MODEL_PATH_KEY));
+        etModelPath.setTitle("Model Path (SDCard: " + Utils.getSDCardDirectory() + ")");
+        etYamlPath = (EditTextPreference) findPreference(getString(R.string.YAML_PATH_KEY));
+        etImagePath = (EditTextPreference) findPreference(getString(R.string.IMAGE_PATH_KEY));
+        lpCPUThreadNum =
+                (ListPreference) findPreference(getString(R.string.CPU_THREAD_NUM_KEY));
+        lpCPUPowerMode =
+                (ListPreference) findPreference(getString(R.string.CPU_POWER_MODE_KEY));
+    }
+
+    private void reloadPreferenceAndUpdateUI() {
+        SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
+        boolean enableCustomSettings =
+                sharedPreferences.getBoolean(getString(R.string.ENABLE_CUSTOM_SETTINGS_KEY), false);
+        String modelPath = sharedPreferences.getString(getString(R.string.CHOOSE_PRE_INSTALLED_MODEL_KEY),
+                getString(R.string.MODEL_PATH_DEFAULT));
+        int modelIdx = lpChoosePreInstalledModel.findIndexOfValue(modelPath);
+        if (modelIdx >= 0 && modelIdx < preInstalledModelPaths.size()) {
+            if (!enableCustomSettings) {
+                SharedPreferences.Editor editor = sharedPreferences.edit();
+                editor.putString(getString(R.string.MODEL_PATH_KEY), preInstalledModelPaths.get(modelIdx));
+                editor.putString(getString(R.string.YAML_PATH_KEY), preInstalledYamlPaths.get(modelIdx));
+                editor.putString(getString(R.string.IMAGE_PATH_KEY), preInstalledImagePaths.get(modelIdx));
+                editor.putString(getString(R.string.CPU_THREAD_NUM_KEY), preInstalledCPUThreadNums.get(modelIdx));
+                editor.putString(getString(R.string.CPU_POWER_MODE_KEY), preInstalledCPUPowerModes.get(modelIdx));
+                editor.commit();
+            }
+            lpChoosePreInstalledModel.setSummary(modelPath);
+        }
+
+        cbEnableCustomSettings.setChecked(enableCustomSettings);
+        etModelPath.setEnabled(enableCustomSettings);
+        etYamlPath.setEnabled(enableCustomSettings);
+        etImagePath.setEnabled(enableCustomSettings);
+        lpCPUThreadNum.setEnabled(enableCustomSettings);
+        lpCPUPowerMode.setEnabled(enableCustomSettings);
+        modelPath = sharedPreferences.getString(getString(R.string.MODEL_PATH_KEY),
+                getString(R.string.MODEL_PATH_DEFAULT));
+        String YamlPath = sharedPreferences.getString(getString(R.string.YAML_PATH_KEY),
+                getString(R.string.YAML_PATH_DEFAULT));
+        String imagePath = sharedPreferences.getString(getString(R.string.IMAGE_PATH_KEY),
+                getString(R.string.IMAGE_PATH_DEFAULT));
+        String cpuThreadNum = sharedPreferences.getString(getString(R.string.CPU_THREAD_NUM_KEY),
+                getString(R.string.CPU_THREAD_NUM_DEFAULT));
+        String cpuPowerMode = sharedPreferences.getString(getString(R.string.CPU_POWER_MODE_KEY),
+                getString(R.string.CPU_POWER_MODE_DEFAULT));
+
+        etModelPath.setSummary(modelPath);
+        etModelPath.setText(modelPath);
+        etYamlPath.setSummary(YamlPath);
+        etYamlPath.setText(YamlPath);
+        etImagePath.setSummary(imagePath);
+        etImagePath.setText(imagePath);
+        lpCPUThreadNum.setValue(cpuThreadNum);
+        lpCPUThreadNum.setSummary(cpuThreadNum);
+        lpCPUPowerMode.setValue(cpuPowerMode);
+        lpCPUPowerMode.setSummary(cpuPowerMode);
+
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
+        reloadPreferenceAndUpdateUI();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+        if (key.equals(getString(R.string.CHOOSE_PRE_INSTALLED_MODEL_KEY))) {
+            SharedPreferences.Editor editor = sharedPreferences.edit();
+            editor.putBoolean(getString(R.string.ENABLE_CUSTOM_SETTINGS_KEY), false);
+            editor.commit();
+        }
+        reloadPreferenceAndUpdateUI();
+    }
+}

deploy/lite/android/demo/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

deploy/lite/android/demo/app/src/main/res/drawable/ic_launcher_background.xml

+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#008577"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

deploy/lite/android/demo/app/src/main/res/layout/activity_main.xml

+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.baidu.paddlex.lite.demo.MainActivity">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:id="@+id/v_input_info"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:layout_alignParentTop="true"
+            android:orientation="vertical">
+
+            <TextView
+                android:id="@+id/tv_input_setting"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="12dp"
+                android:layout_marginTop="10dp"
+                android:layout_marginRight="12dp"
+                android:layout_marginBottom="5dp"
+                android:lineSpacingExtra="4dp"
+                android:maxLines="6"
+                android:scrollbars="vertical"
+                android:singleLine="false"
+                android:text="" />
+
+        </LinearLayout>
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_above="@+id/v_output_info"
+            android:layout_below="@+id/v_input_info">
+
+            <ImageView
+                android:id="@+id/iv_input_image"
+                android:layout_width="400dp"
+                android:layout_height="400dp"
+                android:layout_centerInParent="true"
+                android:layout_marginLeft="12dp"
+                android:layout_marginTop="5dp"
+                android:layout_marginRight="12dp"
+                android:layout_marginBottom="5dp"
+                android:adjustViewBounds="true"
+                android:scaleType="fitCenter" />
+        </RelativeLayout>
+
+
+        <RelativeLayout
+            android:id="@+id/v_output_info"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentBottom="true"
+            android:layout_centerHorizontal="true">
+
+            <TextView
+                android:id="@+id/tv_output_result"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentTop="true"
+                android:layout_centerHorizontal="true"
+                android:layout_centerVertical="true"
+                android:layout_marginLeft="12dp"
+                android:layout_marginTop="5dp"
+                android:layout_marginRight="12dp"
+                android:layout_marginBottom="5dp"
+                android:lineSpacingExtra="5dp"
+                android:maxLines="5"
+                android:scrollbars="vertical"
+                android:singleLine="false"
+                android:text=""
+                android:textAlignment="center" />
+
+            <TextView
+                android:id="@+id/tv_inference_time"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/tv_output_result"
+                android:layout_centerHorizontal="true"
+                android:layout_centerVertical="true"
+                android:layout_marginLeft="12dp"
+                android:layout_marginTop="5dp"
+                android:layout_marginRight="12dp"
+                android:layout_marginBottom="10dp"
+                android:text=""
+                android:textAlignment="center" />
+
+            <Button
+                android:id="@+id/iv_predict_button"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_below="@+id/tv_inference_time"
+                android:layout_centerHorizontal="true"
+                android:layout_centerVertical="true"
+                android:layout_marginLeft="12dp"
+                android:layout_marginTop="5dp"
+                android:layout_marginRight="12dp"
+                android:layout_marginBottom="10dp"
+                android:text="Predict"
+                android:textAlignment="center" />/>
+
+        </RelativeLayout>
+
+    </RelativeLayout>
+
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file

deploy/lite/android/demo/app/src/main/res/menu/menu_action_options.xml

+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <group android:id="@+id/pick_image">
+        <item
+            android:id="@+id/open_gallery"
+            android:title="Open Gallery"
+            app:showAsAction="withText" />
+
+        <item
+            android:id="@+id/take_photo"
+            android:title="Take Photo"
+            app:showAsAction="withText" />
+    </group>
+
+    <group>
+        <item
+            android:id="@+id/settings"
+            android:title="Settings..."
+            app:showAsAction="withText" />
+    </group>
+</menu>

deploy/lite/android/demo/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file

deploy/lite/android/demo/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file

deploy/lite/android/demo/app/src/main/res/values/arrays.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="cpu_thread_num_entries">
+        <item>1 threads</item>
+        <item>2 threads</item>
+        <item>4 threads</item>
+        <item>8 threads</item>
+    </string-array>
+    <string-array name="cpu_thread_num_values">
+        <item>1</item>
+        <item>2</item>
+        <item>4</item>
+        <item>8</item>
+    </string-array>
+    <string-array name="cpu_power_mode_entries">
+        <item>HIGH(only big cores)</item>
+        <item>LOW(only LITTLE cores)</item>
+        <item>FULL(all cores)</item>
+        <item>NO_BIND(depends on system)</item>
+        <item>RAND_HIGH</item>
+        <item>RAND_LOW</item>
+    </string-array>
+    <string-array name="cpu_power_mode_values">
+        <item>LITE_POWER_HIGH</item>
+        <item>LITE_POWER_LOW</item>
+        <item>LITE_POWER_FULL</item>
+        <item>LITE_POWER_NO_BIND</item>
+        <item>LITE_POWER_RAND_HIGH</item>
+        <item>LITE_POWER_RAND_LOW</item>
+    </string-array>
+    <string-array name="input_color_format_entries">
+        <item>BGR color format</item>
+        <item>RGB color format</item>
+    </string-array>
+    <string-array name="input_color_format_values">
+        <item>BGR</item>
+        <item>RGB</item>
+    </string-array>
+</resources>
\ No newline at end of file

deploy/lite/android/demo/app/src/main/res/values/colors.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#008577</color>
+    <color name="colorPrimaryDark">#00574B</color>
+    <color name="colorAccent">#D81B60</color>
+</resources>

deploy/lite/android/demo/app/src/main/res/values/strings.xml

+<resources>
+<string name="app_name">PaddleX Demo</string>
+<!-- settings -->
+<string name="CHOOSE_PRE_INSTALLED_MODEL_KEY">CHOOSE_PRE_INSTALLED_MODEL_KEY</string>
+<string name="ENABLE_CUSTOM_SETTINGS_KEY">ENABLE_CUSTOM_SETTINGS_KEY</string>
+<string name="MODEL_PATH_KEY">MODEL_PATH_KEY</string>
+<string name="YAML_PATH_KEY">YAML_PATH_KEY</string>
+<string name="IMAGE_PATH_KEY">IMAGE_PATH_KEY</string>
+<string name="CPU_POWER_MODE_KEY">CPU_POWER_MODE_KEY</string>
+<string name="CPU_THREAD_NUM_KEY">CPU_THREAD_NUM_KEY</string>
+<string name="MODEL_PATH_DEFAULT">model/model.nb</string>
+<string name="YAML_PATH_DEFAULT">config/model.yml</string>
+<string name="IMAGE_PATH_DEFAULT">images/test.jpg</string>
+<string name="CPU_THREAD_NUM_DEFAULT">1</string>
+<string name="CPU_POWER_MODE_DEFAULT">LITE_POWER_HIGH</string>
+</resources>
\ No newline at end of file

deploy/lite/android/demo/app/src/main/res/values/styles.xml

+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+        <item name="actionOverflowMenuStyle">@style/OverflowMenuStyle</item>
+    </style>
+
+    <style name="OverflowMenuStyle" parent="Widget.AppCompat.Light.PopupMenu.Overflow">
+        <item name="overlapAnchor">false</item>
+    </style>
+
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+</resources>

deploy/lite/android/demo/app/src/main/res/xml/settings.xml

+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <PreferenceCategory android:title="Model Settings">
+        <ListPreference
+            android:defaultValue="@string/MODEL_PATH_DEFAULT"
+            android:key="@string/CHOOSE_PRE_INSTALLED_MODEL_KEY"
+            android:negativeButtonText="@null"
+            android:positiveButtonText="@null"
+            android:title="Choose pre-installed models" />
+        <CheckBoxPreference
+            android:defaultValue="false"
+            android:key="@string/ENABLE_CUSTOM_SETTINGS_KEY"
+            android:summaryOff="Disable"
+            android:summaryOn="Enable"
+            android:title="Enable custom settings" />
+        <EditTextPreference
+            android:defaultValue="@string/MODEL_PATH_DEFAULT"
+            android:key="@string/MODEL_PATH_KEY"
+            android:title="Model Path" />
+        <EditTextPreference
+            android:defaultValue="@string/YAML_PATH_DEFAULT"
+            android:key="@string/YAML_PATH_KEY"
+            android:title="Yaml Path" />
+    </PreferenceCategory>
+    <PreferenceCategory android:title="Image Settings">
+        <EditTextPreference
+            android:defaultValue="@string/IMAGE_PATH_DEFAULT"
+            android:key="@string/IMAGE_PATH_KEY"
+            android:title="Image Path" />
+    </PreferenceCategory>
+    <PreferenceCategory android:title="CPU Settings">
+        <ListPreference
+            android:defaultValue="@string/CPU_THREAD_NUM_DEFAULT"
+            android:entries="@array/cpu_thread_num_entries"
+            android:entryValues="@array/cpu_thread_num_values"
+            android:key="@string/CPU_THREAD_NUM_KEY"
+            android:negativeButtonText="@null"
+            android:positiveButtonText="@null"
+            android:title="CPU Thread Num" />
+        <ListPreference
+            android:defaultValue="@string/CPU_POWER_MODE_DEFAULT"
+            android:entries="@array/cpu_power_mode_entries"
+            android:entryValues="@array/cpu_power_mode_values"
+            android:key="@string/CPU_POWER_MODE_KEY"
+            android:negativeButtonText="@null"
+            android:positiveButtonText="@null"
+            android:title="CPU Power Mode" />
+    </PreferenceCategory>
+</PreferenceScreen>

deploy/lite/android/demo/app/src/test/java/com/baidu/paddlex/lite/demo/ExampleUnitTest.java

+package com.baidu.paddlex.lite.demo;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file

deploy/lite/android/demo/build.gradle

+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.4.0'
+        
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

deploy/lite/android/demo/gradle.properties

+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+
+

deploy/lite/android/demo/gradle/wrapper/gradle-wrapper.properties

+#Thu Aug 22 15:05:37 CST 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip

deploy/lite/android/demo/gradlew

+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

deploy/lite/android/demo/gradlew.bat

+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

deploy/lite/android/demo/import-summary.txt

+ECLIPSE ANDROID PROJECT IMPORT SUMMARY
+======================================
+
+Ignored Files:
+--------------
+The following files were *not* copied into the new Gradle project; you
+should evaluate whether these are still needed in your project and if
+so manually move them:
+
+* javadoc/
+* javadoc/allclasses-frame.html
+* javadoc/allclasses-noframe.html
+* javadoc/constant-values.html
+* javadoc/help-doc.html
+* javadoc/index-all.html
+* javadoc/index.html
+* javadoc/org/
+* javadoc/org/opencv/
+* javadoc/org/opencv/android/
+* javadoc/org/opencv/android/BaseLoaderCallback.html
+* javadoc/org/opencv/android/Camera2Renderer.html
+* javadoc/org/opencv/android/CameraBridgeViewBase.CvCameraViewFrame.html
+* javadoc/org/opencv/android/CameraBridgeViewBase.CvCameraViewListener.html
+* javadoc/org/opencv/android/CameraBridgeViewBase.CvCameraViewListener2.html
+* javadoc/org/opencv/android/CameraBridgeViewBase.ListItemAccessor.html
+* javadoc/org/opencv/android/CameraBridgeViewBase.html
+* javadoc/org/opencv/android/CameraGLRendererBase.html
+* javadoc/org/opencv/android/CameraGLSurfaceView.CameraTextureListener.html
+* javadoc/org/opencv/android/CameraGLSurfaceView.html
+* javadoc/org/opencv/android/CameraRenderer.html
+* javadoc/org/opencv/android/FpsMeter.html
+* javadoc/org/opencv/android/InstallCallbackInterface.html
+* javadoc/org/opencv/android/JavaCamera2View.html
+* javadoc/org/opencv/android/JavaCameraView.JavaCameraSizeAccessor.html
+* javadoc/org/opencv/android/JavaCameraView.html
+* javadoc/org/opencv/android/LoaderCallbackInterface.html
+* javadoc/org/opencv/android/OpenCVLoader.html
+* javadoc/org/opencv/android/Utils.html
+* javadoc/org/opencv/android/package-frame.html
+* javadoc/org/opencv/android/package-summary.html
+* javadoc/org/opencv/android/package-tree.html
+* javadoc/org/opencv/calib3d/
+* javadoc/org/opencv/calib3d/Calib3d.html
+* javadoc/org/opencv/calib3d/StereoBM.html
+* javadoc/org/opencv/calib3d/StereoMatcher.html
+* javadoc/org/opencv/calib3d/StereoSGBM.html
+* javadoc/org/opencv/calib3d/package-frame.html
+* javadoc/org/opencv/calib3d/package-summary.html
+* javadoc/org/opencv/calib3d/package-tree.html
+* javadoc/org/opencv/core/
+* javadoc/org/opencv/core/Algorithm.html
+* javadoc/org/opencv/core/Core.MinMaxLocResult.html
+* javadoc/org/opencv/core/Core.html
+* javadoc/org/opencv/core/CvException.html
+* javadoc/org/opencv/core/CvType.html
+* javadoc/org/opencv/core/DMatch.html
+* javadoc/org/opencv/core/KeyPoint.html
+* javadoc/org/opencv/core/Mat.html
+* javadoc/org/opencv/core/MatOfByte.html
+* javadoc/org/opencv/core/MatOfDMatch.html
+* javadoc/org/opencv/core/MatOfDouble.html
+* javadoc/org/opencv/core/MatOfFloat.html
+* javadoc/org/opencv/core/MatOfFloat4.html
+* javadoc/org/opencv/core/MatOfFloat6.html
+* javadoc/org/opencv/core/MatOfInt.html
+* javadoc/org/opencv/core/MatOfInt4.html
+* javadoc/org/opencv/core/MatOfKeyPoint.html
+* javadoc/org/opencv/core/MatOfPoint.html
+* javadoc/org/opencv/core/MatOfPoint2f.html
+* javadoc/org/opencv/core/MatOfPoint3.html
+* javadoc/org/opencv/core/MatOfPoint3f.html
+* javadoc/org/opencv/core/MatOfRect.html
+* javadoc/org/opencv/core/MatOfRect2d.html
+* javadoc/org/opencv/core/MatOfRotatedRect.html
+* javadoc/org/opencv/core/Point.html
+* javadoc/org/opencv/core/Point3.html
+* javadoc/org/opencv/core/Range.html
+* javadoc/org/opencv/core/Rect.html
+* javadoc/org/opencv/core/Rect2d.html
+* javadoc/org/opencv/core/RotatedRect.html
+* javadoc/org/opencv/core/Scalar.html
+* javadoc/org/opencv/core/Size.html
+* javadoc/org/opencv/core/TermCriteria.html
+* javadoc/org/opencv/core/TickMeter.html
+* javadoc/org/opencv/core/package-frame.html
+* javadoc/org/opencv/core/package-summary.html
+* javadoc/org/opencv/core/package-tree.html
+* javadoc/org/opencv/dnn/
+* javadoc/org/opencv/dnn/DictValue.html
+* javadoc/org/opencv/dnn/Dnn.html
+* javadoc/org/opencv/dnn/Layer.html
+* javadoc/org/opencv/dnn/Net.html
+* javadoc/org/opencv/dnn/package-frame.html
+* javadoc/org/opencv/dnn/package-summary.html
+* javadoc/org/opencv/dnn/package-tree.html
+* javadoc/org/opencv/features2d/
+* javadoc/org/opencv/features2d/AKAZE.html
+* javadoc/org/opencv/features2d/AgastFeatureDetector.html
+* javadoc/org/opencv/features2d/BFMatcher.html
+* javadoc/org/opencv/features2d/BOWImgDescriptorExtractor.html
+* javadoc/org/opencv/features2d/BOWKMeansTrainer.html
+* javadoc/org/opencv/features2d/BOWTrainer.html
+* javadoc/org/opencv/features2d/BRISK.html
+* javadoc/org/opencv/features2d/DescriptorMatcher.html
+* javadoc/org/opencv/features2d/FastFeatureDetector.html
+* javadoc/org/opencv/features2d/Feature2D.html
+* javadoc/org/opencv/features2d/Features2d.html
+* javadoc/org/opencv/features2d/FlannBasedMatcher.html
+* javadoc/org/opencv/features2d/GFTTDetector.html
+* javadoc/org/opencv/features2d/KAZE.html
+* javadoc/org/opencv/features2d/MSER.html
+* javadoc/org/opencv/features2d/ORB.html
+* javadoc/org/opencv/features2d/Params.html
+* javadoc/org/opencv/features2d/package-frame.html
+* javadoc/org/opencv/features2d/package-summary.html
+* javadoc/org/opencv/features2d/package-tree.html
+* javadoc/org/opencv/imgcodecs/
+* javadoc/org/opencv/imgcodecs/Imgcodecs.html
+* javadoc/org/opencv/imgcodecs/package-frame.html
+* javadoc/org/opencv/imgcodecs/package-summary.html
+* javadoc/org/opencv/imgcodecs/package-tree.html
+* javadoc/org/opencv/imgproc/
+* javadoc/org/opencv/imgproc/CLAHE.html
+* javadoc/org/opencv/imgproc/Imgproc.html
+* javadoc/org/opencv/imgproc/LineSegmentDetector.html
+* javadoc/org/opencv/imgproc/Moments.html
+* javadoc/org/opencv/imgproc/Subdiv2D.html
+* javadoc/org/opencv/imgproc/package-frame.html
+* javadoc/org/opencv/imgproc/package-summary.html
+* javadoc/org/opencv/imgproc/package-tree.html
+* javadoc/org/opencv/ml/
+* javadoc/org/opencv/ml/ANN_MLP.html
+* javadoc/org/opencv/ml/ANN_MLP_ANNEAL.html
+* javadoc/org/opencv/ml/Boost.html
+* javadoc/org/opencv/ml/DTrees.html
+* javadoc/org/opencv/ml/EM.html
+* javadoc/org/opencv/ml/KNearest.html
+* javadoc/org/opencv/ml/LogisticRegression.html
+* javadoc/org/opencv/ml/Ml.html
+* javadoc/org/opencv/ml/NormalBayesClassifier.html
+* javadoc/org/opencv/ml/ParamGrid.html
+* javadoc/org/opencv/ml/RTrees.html
+* javadoc/org/opencv/ml/SVM.html
+* javadoc/org/opencv/ml/SVMSGD.html
+* javadoc/org/opencv/ml/StatModel.html
+* javadoc/org/opencv/ml/TrainData.html
+* javadoc/org/opencv/ml/package-frame.html
+* javadoc/org/opencv/ml/package-summary.html
+* javadoc/org/opencv/ml/package-tree.html
+* javadoc/org/opencv/objdetect/
+* javadoc/org/opencv/objdetect/BaseCascadeClassifier.html
+* javadoc/org/opencv/objdetect/CascadeClassifier.html
+* javadoc/org/opencv/objdetect/HOGDescriptor.html
+* javadoc/org/opencv/objdetect/Objdetect.html
+* javadoc/org/opencv/objdetect/QRCodeDetector.html
+* javadoc/org/opencv/objdetect/package-frame.html
+* javadoc/org/opencv/objdetect/package-summary.html
+* javadoc/org/opencv/objdetect/package-tree.html
+* javadoc/org/opencv/osgi/
+* javadoc/org/opencv/osgi/OpenCVInterface.html
+* javadoc/org/opencv/osgi/OpenCVNativeLoader.html
+* javadoc/org/opencv/osgi/package-frame.html
+* javadoc/org/opencv/osgi/package-summary.html
+* javadoc/org/opencv/osgi/package-tree.html
+* javadoc/org/opencv/photo/
+* javadoc/org/opencv/photo/AlignExposures.html
+* javadoc/org/opencv/photo/AlignMTB.html
+* javadoc/org/opencv/photo/CalibrateCRF.html
+* javadoc/org/opencv/photo/CalibrateDebevec.html
+* javadoc/org/opencv/photo/CalibrateRobertson.html
+* javadoc/org/opencv/photo/MergeDebevec.html
+* javadoc/org/opencv/photo/MergeExposures.html
+* javadoc/org/opencv/photo/MergeMertens.html
+* javadoc/org/opencv/photo/MergeRobertson.html
+* javadoc/org/opencv/photo/Photo.html
+* javadoc/org/opencv/photo/Tonemap.html
+* javadoc/org/opencv/photo/TonemapDrago.html
+* javadoc/org/opencv/photo/TonemapMantiuk.html
+* javadoc/org/opencv/photo/TonemapReinhard.html
+* javadoc/org/opencv/photo/package-frame.html
+* javadoc/org/opencv/photo/package-summary.html
+* javadoc/org/opencv/photo/package-tree.html
+* javadoc/org/opencv/utils/
+* javadoc/org/opencv/utils/Converters.html
+* javadoc/org/opencv/utils/package-frame.html
+* javadoc/org/opencv/utils/package-summary.html
+* javadoc/org/opencv/utils/package-tree.html
+* javadoc/org/opencv/video/
+* javadoc/org/opencv/video/BackgroundSubtractor.html
+* javadoc/org/opencv/video/BackgroundSubtractorKNN.html
+* javadoc/org/opencv/video/BackgroundSubtractorMOG2.html
+* javadoc/org/opencv/video/DenseOpticalFlow.html
+* javadoc/org/opencv/video/DualTVL1OpticalFlow.html
+* javadoc/org/opencv/video/FarnebackOpticalFlow.html
+* javadoc/org/opencv/video/KalmanFilter.html
+* javadoc/org/opencv/video/SparseOpticalFlow.html
+* javadoc/org/opencv/video/SparsePyrLKOpticalFlow.html
+* javadoc/org/opencv/video/Video.html
+* javadoc/org/opencv/video/package-frame.html
+* javadoc/org/opencv/video/package-summary.html
+* javadoc/org/opencv/video/package-tree.html
+* javadoc/org/opencv/videoio/
+* javadoc/org/opencv/videoio/VideoCapture.html
+* javadoc/org/opencv/videoio/VideoWriter.html
+* javadoc/org/opencv/videoio/Videoio.html
+* javadoc/org/opencv/videoio/package-frame.html
+* javadoc/org/opencv/videoio/package-summary.html
+* javadoc/org/opencv/videoio/package-tree.html
+* javadoc/overview-frame.html
+* javadoc/overview-summary.html
+* javadoc/overview-tree.html
+* javadoc/package-list
+* javadoc/resources/
+* javadoc/resources/background.gif
+* javadoc/resources/tab.gif
+* javadoc/resources/titlebar.gif
+* javadoc/resources/titlebar_end.gif
+* javadoc/serialized-form.html
+* javadoc/stylesheet.css
+
+Moved Files:
+------------
+Android Gradle projects use a different directory structure than ADT
+Eclipse projects. Here's how the projects were restructured:
+
+* AndroidManifest.xml => openCVLibrary346/src/main/AndroidManifest.xml
+* lint.xml => openCVLibrary346/lint.xml
+* res/ => openCVLibrary346/src/main/res/
+* src/ => openCVLibrary346/src/main/java/
+* src/org/opencv/engine/OpenCVEngineInterface.aidl => openCVLibrary346/src/main/aidl/org/opencv/engine/OpenCVEngineInterface.aidl
+
+Next Steps:
+-----------
+You can now build the project. The Gradle project needs network
+connectivity to download dependencies.
+
+Bugs:
+-----
+If for some reason your project does not build, and you determine that
+it is due to a bug or limitation of the Eclipse to Gradle importer,
+please file a bug at http://b.android.com with category
+Component-Tools.
+
+(This import summary is for your information only, and can be deleted
+after import once you are satisfied with the results.)

deploy/lite/android/demo/settings.gradle

+include ':app'
\ No newline at end of file

deploy/lite/android/sdk/.gitignore

+/build

deploy/lite/android/sdk/build.gradle

+import java.security.MessageDigest
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 28
+    buildToolsVersion "29.0.2"
+    defaultConfig {
+        minSdkVersion 15
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles 'consumer-rules.pro'
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar','*.aar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'com.android.support:design:28.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+}
+
+
+def paddleLiteLibs = 'https://bj.bcebos.com/paddlex/deploy/lite/paddle_lite_version_11cbd50e.tar.gz'
+task downloadAndExtractPaddleLiteLibs(type: DefaultTask) {
+    doFirst {
+        println "Downloading and extracting Paddle Lite libs"
+    }
+    doLast {
+        // Prepare cache folder for libs
+        if (!file("cache").exists()) {
+            mkdir "cache"
+        }
+        // Generate cache name for libs
+        MessageDigest messageDigest = MessageDigest.getInstance('MD5')
+        messageDigest.update(paddleLiteLibs.bytes)
+        String cacheName = new BigInteger(1, messageDigest.digest()).toString(32)
+        // Download libs
+        if (!file("cache/${cacheName}.tar.gz").exists()) {
+            ant.get(src: paddleLiteLibs, dest: file("cache/${cacheName}.tar.gz"))
+        }
+        // Unpack libs
+        copy {
+            from tarTree("cache/${cacheName}.tar.gz")
+            into "cache/${cacheName}"
+        }
+        // Copy PaddlePredictor.jar
+        if (!file("libs/PaddlePredictor.jar").exists()) {
+            copy {
+                from "cache/${cacheName}/PaddlePredictor.jar"
+                into "libs"
+            }
+        }
+        // Copy libpaddle_lite_jni.so for armeabi-v7a and arm64-v8a
+        if (!file("src/main/jniLibs/armeabi-v7a/libpaddle_lite_jni.so").exists()) {
+            copy {
+                from "cache/${cacheName}/libs/armeabi-v7a/"
+                into "src/main/jniLibs/armeabi-v7a"
+            }
+        }
+        if (!file("src/main/jniLibs/arm64-v8a/libpaddle_lite_jni.so").exists()) {
+            copy {
+                from "cache/${cacheName}/libs/arm64-v8a/"
+                into "src/main/jniLibs/arm64-v8a"
+            }
+        }
+    }
+}
+preBuild.dependsOn downloadAndExtractPaddleLiteLibs
+
+def snakeYamlLibs = 'https://bj.bcebos.com/paddlex/deploy/lite/snakeyaml-1.18-android.tar.gz'
+task downloadAndExtractSnakeYamlLibs(type: DefaultTask) {
+    doFirst {
+        println "Downloading and extracting snake yaml sdk"
+    }
+    doLast {
+        // Prepare cache folder for sdk
+        if (!file("cache").exists()) {
+            mkdir "cache"
+        }
+        // Generate cache name for sdk
+        MessageDigest messageDigest = MessageDigest.getInstance('MD5')
+        messageDigest.update(snakeYamlLibs.bytes)
+        String cacheName = new BigInteger(1, messageDigest.digest()).toString(32)
+        // Download libs
+        if (!file("cache/${cacheName}.tar.gz").exists()) {
+            ant.get(src: snakeYamlLibs, dest: file("cache/${cacheName}.tar.gz"))
+        }
+        // Unpack libs
+        copy {
+            from tarTree("cache/${cacheName}.tar.gz")
+            into "cache/${cacheName}"
+        }
+        // Copy .jar
+        if (!file("libs/snakeyaml-1.18-android.jar").exists()) {
+            copy {
+                from "cache/${cacheName}/snakeyaml-1.18-android.jar"
+                into "libs"
+            }
+        }
+    }
+}
+preBuild.dependsOn downloadAndExtractSnakeYamlLibs
+
+def opencvLibs = 'https://bj.bcebos.com/paddlex/deploy/lite/opencv-3.4.6-android.tar.gz'
+task downloadAndExtractOpencvLibs(type: DefaultTask) {
+    doFirst {
+        println "Downloading and extracting opencv sdk"
+    }
+    doLast {
+        // Prepare cache folder for sdk
+        if (!file("cache").exists()) {
+            mkdir "cache"
+        }
+        // Generate cache name for sdk
+        MessageDigest messageDigest = MessageDigest.getInstance('MD5')
+        messageDigest.update(opencvLibs.bytes)
+        String cacheName = new BigInteger(1, messageDigest.digest()).toString(32)
+        // Download libs
+        if (!file("cache/${cacheName}.tar.gz").exists()) {
+            ant.get(src: opencvLibs, dest: file("cache/${cacheName}.tar.gz"))
+        }
+        // Unpack libs
+        copy {
+            from tarTree("cache/${cacheName}.tar.gz")
+            into "cache/${cacheName}"
+        }
+        // Copy .jar
+        if (!file("libs/opencv346.jar").exists()) {
+            copy {
+                from "cache/${cacheName}/opencv346.jar"
+                into "libs"
+            }
+        }
+        // Copy .so for armeabi-v7a and arm64-v8a
+        if (!file("src/main/jniLibs/armeabi-v7a/libopencv_java3.so").exists()) {
+            copy {
+                from "cache/${cacheName}/libs/armeabi-v7a/"
+                into "src/main/jniLibs/armeabi-v7a"
+            }
+        }
+        if (!file("src/main/jniLibs/arm64-v8a/libopencv_java3.so").exists()) {
+            copy {
+                from "cache/${cacheName}/libs/arm64-v8a/"
+                into "src/main/jniLibs/arm64-v8a"
+            }
+        }
+    }
+}
+
+preBuild.dependsOn downloadAndExtractOpencvLibs

deploy/lite/android/sdk/local.properties

+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Tue Jun 16 10:08:04 CST 2020

deploy/lite/android/sdk/proguard-rules.pro

+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

deploy/lite/android/sdk/src/androidTest/java/com/example/paddlex/ExampleInstrumentedTest.java

+package com.example.paddlex;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+
+import com.baidu.paddlex.config.ConfigParser;
+
+import org.json.JSONException;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws IOException, JSONException {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        AssetManager ass =  appContext.getAssets();
+    }
+}

deploy/lite/android/sdk/src/main/AndroidManifest.xml

+<manifest package="com.example.paddlex" />

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/Predictor.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex;
+import android.util.Log;
+import com.baidu.paddle.lite.MobileConfig;
+import com.baidu.paddle.lite.PaddlePredictor;
+import com.baidu.paddle.lite.PowerMode;
+import com.baidu.paddle.lite.Tensor;
+import com.baidu.paddlex.config.ConfigParser;
+import com.baidu.paddlex.postprocess.ClsResult;
+import com.baidu.paddlex.postprocess.DetResult;
+import com.baidu.paddlex.postprocess.Result;
+import com.baidu.paddlex.postprocess.SegResult;
+import com.baidu.paddlex.preprocess.ImageBlob;
+import com.baidu.paddlex.preprocess.Transforms;
+import java.util.Date;
+import org.opencv.core.Mat;
+
+public class Predictor {
+    private static final String TAG = Predictor.class.getSimpleName();
+    protected boolean isLoaded = false;
+    protected int warmupIterNum = 0;
+    protected int inferIterNum = 1;
+    protected int cpuThreadNum = 1;
+    protected String cpuPowerMode = "LITE_POWER_HIGH";
+    protected String modelPath = "";
+    protected String modelName = "";
+    protected float inferenceTime = 0;
+    protected float preprocessTime = 0;
+    protected float postprocessTime = 0;
+    protected PaddlePredictor paddlePredictor = null;
+    protected ImageBlob imageBlob = new ImageBlob();
+    protected Transforms transforms = new Transforms();
+    protected ConfigParser configParser = new ConfigParser();
+    protected Mat inputMat;
+    protected Result result;
+
+    public Predictor() {
+        super();
+    }
+
+    public boolean init(String modelPath, int cpuThreadNum, String cpuPowerMode) {
+        if (configParser.getModelType().equalsIgnoreCase("classifier")) {
+            result = new ClsResult();
+        } else if (configParser.getModelType().equalsIgnoreCase("detector")) {
+            result = new DetResult();
+        } else if (configParser.getModelType().equalsIgnoreCase("segmenter")) {
+            result = new SegResult();
+        } else {
+            Log.i(TAG, "model type: " + configParser.getModelType() + " is not support! Only support: 'classifier' or 'detector' or 'segmenter'");
+        }
+        isLoaded = loadModel(modelPath, cpuThreadNum, cpuPowerMode);
+        return isLoaded;
+    }
+
+    public boolean init(ConfigParser configParser) {
+        this.configParser = configParser;
+        init(configParser.getModelPath(), configParser.getCpuThreadNum(), configParser.getCpuPowerMode());
+        transforms.loadConfig(configParser.getTransformsList(), configParser.getTransformsMode());
+        if (!isLoaded()) {
+            return false;
+        }
+        Log.i(TAG, configParser.toString());
+        return isLoaded;
+    }
+
+    public boolean predict() {
+        this.imageBlob.clear();
+        this.imageBlob = transforms.run(inputMat, imageBlob);
+        if (configParser.getModelType().equalsIgnoreCase("classifier")) {
+            runModel((ClsResult) result);
+        } else if (configParser.getModelType().equalsIgnoreCase("detector")) {
+            runModel((DetResult) result);
+        } else if (configParser.getModelType().equalsIgnoreCase("segmenter")) {
+            runModel((SegResult) result);
+        }
+        return true;
+    }
+
+    private boolean runModel(DetResult detReult) {
+        // set input shape & data
+        Tensor imTensor = getInput(0);
+        imTensor.resize(imageBlob.getNewImageSize());
+        imTensor.setData(imageBlob.getImageData());
+        if (configParser.getModel().equalsIgnoreCase("YOLOv3")) {
+            Tensor imSizeTensor = getInput(1);
+            long[] imSize = {1, 2};
+            imSizeTensor.resize(imSize);
+            imSizeTensor.setData(new int[]{(int) imageBlob.getOriImageSize()[2], (int) imageBlob.getOriImageSize()[3]});
+        } else if (configParser.getModel().equalsIgnoreCase("FasterRCNN")) {
+            Tensor imInfoTensor = getInput(1);
+            long[] imInfo = {1, 3};
+            imInfoTensor.resize(imInfo);
+            imInfoTensor.setData(new float[]{imageBlob.getNewImageSize()[2], imageBlob.getNewImageSize()[3], imageBlob.getScale()});
+
+            Tensor imShapeTensor = getInput(2);
+            long[] imShape = {1, 3};
+            imShapeTensor.resize(imShape);
+            imShapeTensor.setData(new float[]{imageBlob.getOriImageSize()[2], imageBlob.getOriImageSize()[3], 1});
+        }
+        // run model
+        runModel();
+        // Fetch output tensor
+        Tensor outputTensor = getOutput(0);
+        float[] output = outputTensor.getFloatData();
+        long[] outputShape = outputTensor.shape();
+        long outputSize = 1;
+        for (long s : outputShape) {
+            outputSize *= s;
+        }
+        int num_boxes = (int) (outputSize / 6);
+        for (int i = 0; i < num_boxes; i++) {
+            DetResult.Box box = detReult.new Box();
+            box.setCategoryId((int) output[i * 6]);
+            box.setCategory(configParser.getLabeList().get(box.getCategoryId()));
+            box.setScore(output[i * 6 + 1]);
+            float xmin = output[i * 6 + 2];
+            float ymin = output[i * 6 + 3];
+            float xmax = output[i * 6 + 4];
+            float ymax = output[i * 6 + 5];
+            box.setCoordinate(new float[]{xmin, ymin, xmax, ymax});
+            detReult.getBoxes().add(box);
+        }
+        return true;
+    }
+
+    private boolean runModel(SegResult segReult) {
+        // set input shape & data
+        Tensor imTensor = getInput(0);
+        imTensor.resize(imageBlob.getNewImageSize());
+        imTensor.setData(imageBlob.getImageData());
+        // run model
+        runModel();
+        Tensor labelTensor = getOutput(0);
+        // Fetch output tensor
+        long[] labelData = labelTensor.getLongData();
+        segReult.getMask().setLabelShape(labelTensor.shape());
+        long labelSize = 1;
+        for (long s : segReult.getMask().getLabelShape()) {
+            labelSize *= s;
+        }
+        segReult.getMask().setLabelData(labelData);
+
+        Tensor scoreTensor = getOutput(1);
+        float[] scoreData = scoreTensor.getFloatData();
+        segReult.getMask().setScoreShape(scoreTensor.shape());
+        segReult.getMask().setScoreData(scoreData);
+        return true;
+    }
+
+    private boolean runModel(ClsResult clsReult) {
+        // set input shape & data
+        Tensor imTensor = getInput(0);
+        imTensor.resize(imageBlob.getNewImageSize());
+        imTensor.setData(imageBlob.getImageData());
+        // run model
+        runModel();
+        // Fetch output tensor
+        Tensor outputTensor = getOutput(0);
+        long[] outputShape = outputTensor.shape();
+        long outputSize = 1;
+        for (long s : outputShape) {
+            outputSize *= s;
+        }
+        int max_index = 0; // Top3 indices
+        float max_score = 0; // Top3 scores
+        for (int i = 0; i < outputSize; i++) {
+            float tmp = outputTensor.getFloatData()[i];
+            if (tmp > max_score) {
+                max_index = i;
+                max_score = tmp;
+            }
+        }
+        clsReult.setCategoryId(max_index);
+        clsReult.setCategory(configParser.getLabeList().get(max_index));
+        clsReult.setScore(max_score);
+        return true;
+    }
+
+    private boolean loadModel(String modelPath, int cpuThreadNum, String cpuPowerMode) {
+        // release model if exists
+        releaseModel();
+        // load model
+        if (modelPath.isEmpty()) {
+            return false;
+        }
+        MobileConfig config = new MobileConfig();
+        config.setModelFromFile(modelPath);
+        config.setThreads(cpuThreadNum);
+        if (cpuPowerMode.equalsIgnoreCase("LITE_POWER_HIGH")) {
+            config.setPowerMode(PowerMode.LITE_POWER_HIGH);
+        } else if (cpuPowerMode.equalsIgnoreCase("LITE_POWER_LOW")) {
+            config.setPowerMode(PowerMode.LITE_POWER_LOW);
+        } else if (cpuPowerMode.equalsIgnoreCase("LITE_POWER_FULL")) {
+            config.setPowerMode(PowerMode.LITE_POWER_FULL);
+        } else if (cpuPowerMode.equalsIgnoreCase("LITE_POWER_NO_BIND")) {
+            config.setPowerMode(PowerMode.LITE_POWER_NO_BIND);
+        } else if (cpuPowerMode.equalsIgnoreCase("LITE_POWER_RAND_HIGH")) {
+            config.setPowerMode(PowerMode.LITE_POWER_RAND_HIGH);
+        } else if (cpuPowerMode.equalsIgnoreCase("LITE_POWER_RAND_LOW")) {
+            config.setPowerMode(PowerMode.LITE_POWER_RAND_LOW);
+        } else {
+            Log.e(TAG, "unknown cpu power mode!");
+            return false;
+        }
+        paddlePredictor = PaddlePredictor.createPaddlePredictor(config);
+        this.cpuThreadNum = cpuThreadNum;
+        this.cpuPowerMode = cpuPowerMode;
+        this.modelPath = modelPath;
+        this.modelName = configParser.getModel();
+        return true;
+    }
+
+    private boolean runModel() {
+        if (!isLoaded()) {
+            return false;
+        }
+        // warm up
+        for (int i = 0; i < warmupIterNum; i++) {
+            paddlePredictor.run();
+        }
+        Date start = new Date();
+        // inference
+        for (int i = 0; i < inferIterNum; i++) {
+            paddlePredictor.run();
+        }
+        Date end = new Date();
+        inferenceTime = (end.getTime() - start.getTime()) / (float) inferIterNum;
+        return true;
+    }
+
+    public void releaseModel() {
+        paddlePredictor = null;
+        isLoaded = false;
+        cpuThreadNum = 1;
+        cpuPowerMode = "LITE_POWER_HIGH";
+        modelPath = "";
+        modelName = "";
+    }
+
+    public boolean isLoaded() {
+        return paddlePredictor != null && isLoaded;
+    }
+
+    public void setLoaded(boolean loaded) {
+        isLoaded = loaded;
+    }
+
+    public int getWarmupIterNum() {
+        return warmupIterNum;
+    }
+
+    public void setWarmupIterNum(int warmupIterNum) {
+        this.warmupIterNum = warmupIterNum;
+    }
+
+    public int getInferIterNum() {
+        return inferIterNum;
+    }
+
+    public void setInferIterNum(int inferIterNum) {
+        this.inferIterNum = inferIterNum;
+    }
+
+    public float getInferenceTime() {
+        return inferenceTime;
+    }
+
+    public void setInferenceTime(float inferenceTime) {
+        this.inferenceTime = inferenceTime;
+    }
+
+    public int getCpuThreadNum() {
+        return cpuThreadNum;
+    }
+
+    public void setCpuThreadNum(int cpuThreadNum) {
+        this.cpuThreadNum = cpuThreadNum;
+    }
+
+    public String getCpuPowerMode() {
+        return cpuPowerMode;
+    }
+
+    public void setCpuPowerMode(String cpuPowerMode) {
+        this.cpuPowerMode = cpuPowerMode;
+    }
+
+    public String getModelPath() {
+        return modelPath;
+    }
+
+    public void setModelPath(String modelPath) {
+        this.modelPath = modelPath;
+    }
+
+    public String getModelName() {
+        return modelName;
+    }
+
+    public void setModelName(String modelName) {
+        this.modelName = modelName;
+    }
+
+    public Result getResult() {
+        return result;
+    }
+
+    public void setResult(Result result) {
+        this.result = result;
+    }
+
+    public PaddlePredictor getPaddlePredictor() {
+        return paddlePredictor;
+    }
+
+    public void setPaddlePredictor(PaddlePredictor paddlePredictor) {
+        this.paddlePredictor = paddlePredictor;
+    }
+
+    public float getPreprocessTime() {
+        return preprocessTime;
+    }
+
+    public void setPreprocessTime(float preprocessTime) {
+        this.preprocessTime = preprocessTime;
+    }
+
+    public float getPostprocessTime() {
+        return postprocessTime;
+    }
+
+    public void setPostprocessTime(float postprocessTime) {
+        this.postprocessTime = postprocessTime;
+    }
+
+    public void setConfigParser(ConfigParser configParser) {
+        this.configParser = configParser;
+    }
+
+    public Mat getInputMat() {
+        return inputMat;
+    }
+
+    public void setInputMat(Mat inputMat) {
+        Mat copyMat = new Mat();
+        inputMat.copyTo(copyMat);
+        this.inputMat = copyMat;
+    }
+
+    public DetResult getDetResult() {
+        if (result.getType() != "det") {
+            Log.e(TAG, "this model_type is not detector");
+            return null;
+        }
+        return (DetResult) result;
+    }
+
+    public SegResult getSegResult() {
+        if (result.getType() != "seg") {
+            Log.e(TAG, "this model_type is not segmeter");
+            return null;
+        }
+        return (SegResult) result;
+    }
+
+    public ClsResult getClsResult() {
+        if (result.getType() != "cls") {
+            Log.e(TAG, "this model_type is not classifier");
+            return null;
+        }
+        return (ClsResult) result;
+    }
+
+    public ImageBlob getImageBlob() {
+        return imageBlob;
+    }
+
+    public void setImageBlob(ImageBlob imageBlob) {
+        this.imageBlob = imageBlob;
+    }
+
+    public Tensor getInput(int idx) {
+        if (!isLoaded()) {
+            return null;
+        }
+        return paddlePredictor.getInput(idx);
+    }
+
+    public Tensor getOutput(int idx) {
+        if (!isLoaded()) {
+            return null;
+        }
+        return paddlePredictor.getOutput(idx);
+    }
+
+}

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/Utils.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex;
+
+import android.content.Context;
+import android.os.Environment;
+
+import org.opencv.android.OpenCVLoader;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class Utils {
+    private static final String TAG = Utils.class.getSimpleName();
+
+    public static void copyFileFromAssets(Context appCtx, String srcPath, String dstPath) {
+        if (srcPath.isEmpty() || dstPath.isEmpty()) {
+            return;
+        }
+        InputStream is = null;
+        OutputStream os = null;
+        try {
+            is = new BufferedInputStream(appCtx.getAssets().open(srcPath));
+            os = new BufferedOutputStream(new FileOutputStream(new File(dstPath)));
+            byte[] buffer = new byte[1024];
+            int length = 0;
+            while ((length = is.read(buffer)) != -1) {
+                os.write(buffer, 0, length);
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                os.close();
+                is.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public static void copyDirectoryFromAssets(Context appCtx, String srcDir, String dstDir) {
+        if (srcDir.isEmpty() || dstDir.isEmpty()) {
+            return;
+        }
+        try {
+            if (!new File(dstDir).exists()) {
+                new File(dstDir).mkdirs();
+            }
+            for (String fileName : appCtx.getAssets().list(srcDir)) {
+                String srcSubPath = srcDir + File.separator + fileName;
+                String dstSubPath = dstDir + File.separator + fileName;
+                copyFileFromAssets(appCtx, srcSubPath, dstSubPath);
+                if (new File(srcSubPath).isDirectory()) {
+                    copyDirectoryFromAssets(appCtx, srcSubPath, dstSubPath);
+                } else {
+                    copyFileFromAssets(appCtx, srcSubPath, dstSubPath);
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static String getFileNameFromString(String srcDir) {
+        if (srcDir.isEmpty()) {
+            return null;
+        }
+        try {
+            String fileName = srcDir.substring(srcDir.lastIndexOf("/") + 1);
+            return fileName;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static float[] parseFloatsFromString(String string, String delimiter) {
+        String[] pieces = string.trim().toLowerCase().split(delimiter);
+        float[] floats = new float[pieces.length];
+        for (int i = 0; i < pieces.length; i++) {
+            floats[i] = Float.parseFloat(pieces[i].trim());
+        }
+        return floats;
+    }
+
+    public static long[] parseLongsFromString(String string, String delimiter) {
+        String[] pieces = string.trim().toLowerCase().split(delimiter);
+        long[] longs = new long[pieces.length];
+        for (int i = 0; i < pieces.length; i++) {
+            longs[i] = Long.parseLong(pieces[i].trim());
+        }
+        return longs;
+    }
+
+    public static String getSDCardDirectory() {
+        return Environment.getExternalStorageDirectory().getAbsolutePath();
+    }
+
+    public static boolean isSupportedNPU() {
+        String hardware = android.os.Build.HARDWARE;
+        return hardware.equalsIgnoreCase("kirin810") || hardware.equalsIgnoreCase("kirin990");
+    }
+
+    public static boolean initialOpencv() {
+        if (!OpenCVLoader.initDebug()) {
+            return false;
+        }
+        return true;
+    }
+
+}

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/config/ConfigParser.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.config;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+public class ConfigParser {
+    protected String model = "";
+    protected List<String> labeList = new ArrayList<>();
+    protected int numClasses = 0;
+    protected String modelType = "";
+    protected String transformsMode = "RGB";
+    protected List transformsList = new ArrayList();
+    protected String modelPath = "";
+    protected int cpuThreadNum = 1;
+    protected String cpuPowerMode = "";
+    protected String yamlPath = "";
+
+    public void init(String modelPath, String yamlPath, int cpuThreadNum,
+                     String cpuPowerMode) throws IOException {
+
+        this.modelPath = modelPath;
+        this.cpuThreadNum = cpuThreadNum;
+        this.cpuPowerMode = cpuPowerMode;
+        this.yamlPath = yamlPath;
+        InputStream ymlStream = new FileInputStream(new File(yamlPath));
+        Yaml yml = new Yaml();
+        HashMap yml_map = (HashMap) yml.load(ymlStream);
+        model = (String) yml_map.get("Model");
+        if (yml_map.containsKey("TransformsMode")) {
+            transformsMode = (String) yml_map.get("TransformsMode");
+        }
+        HashMap _Attributes = (HashMap) yml_map.get("_Attributes");
+        // parser label_list
+        labeList = (List<String>) _Attributes.get("labels");
+        numClasses = (int) _Attributes.get("num_classes");
+        // parser model_type(classifier, segmenter, detector)
+        modelType = (String) _Attributes.get("model_type");
+        // parser Transforms
+        transformsList = (List) yml_map.get("Transforms");
+
+    }
+
+    @Override
+    public String toString() {
+        return "ConfigParser{" +
+                "model='" + model + '\'' +
+                ", labeList=" + labeList +
+                ", numClasses=" + numClasses +
+                ", modelType='" + modelType + '\'' +
+                ", transformsMode='" + transformsMode + '\'' +
+                ", transformsList=" + transformsList +
+                ", modelPath='" + modelPath + '\'' +
+                ", cpuThreadNum=" + cpuThreadNum +
+                ", cpuPowerMode='" + cpuPowerMode + '\'' +
+                ", yamlPath='" + yamlPath + '\'' +
+                '}';
+    }
+
+    public int getNumClasses() {
+        return numClasses;
+    }
+
+    public void setNumClasses(int numClasses) {
+        this.numClasses = numClasses;
+    }
+
+    public List<String> getLabeList() {
+        return labeList;
+    }
+
+    public void setLabeList(List<String> labeList) {
+        this.labeList = labeList;
+    }
+
+    public String getModelType() {
+        return modelType;
+    }
+
+    public void setModelType(String modelType) {
+        this.modelType = modelType;
+    }
+
+    public List getTransformsList() {
+        return transformsList;
+    }
+
+    public void setTransformsList(List transformsList) {
+        this.transformsList = transformsList;
+    }
+
+    public String getModel() {
+        return model;
+    }
+
+    public void setModel(String model) {
+        this.model = model;
+    }
+
+    public String getTransformsMode() {
+        return transformsMode;
+    }
+
+    public void setTransformsMode(String transformsMode) {
+        this.transformsMode = transformsMode;
+    }
+
+    public String getModelPath() {
+        return modelPath;
+    }
+
+    public void setModelPath(String modelPath) {
+        this.modelPath = modelPath;
+    }
+
+    public int getCpuThreadNum() {
+        return cpuThreadNum;
+    }
+
+    public void setCpuThreadNum(int cpuThreadNum) {
+        this.cpuThreadNum = cpuThreadNum;
+    }
+
+    public String getCpuPowerMode() {
+        return cpuPowerMode;
+    }
+
+    public void setCpuPowerMode(String cpuPowerMode) {
+        this.cpuPowerMode = cpuPowerMode;
+    }
+
+    public String getYamlPath() {
+        return yamlPath;
+    }
+
+    public void setYamlPath(String yamlPath) {
+        this.yamlPath = yamlPath;
+    }
+}

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/postprocess/ClsResult.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.postprocess;
+
+public class ClsResult extends Result {
+    static String type = "cls";
+    protected int categoryId;
+    protected String category;
+    protected float score;
+
+    public int getCategoryId() {
+        return categoryId;
+    }
+
+    public void setCategoryId(int categoryId) {
+        this.categoryId = categoryId;
+    }
+
+    public String getCategory() {
+        return category;
+    }
+
+    public void setCategory(String category) {
+        this.category = category;
+    }
+
+    public double getScore() {
+        return score;
+    }
+
+    public void setScore(float score) {
+        this.score = score;
+    }
+
+    @Override
+    public String getType() {
+        return type;
+    }
+
+}

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/postprocess/DetResult.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.postprocess;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DetResult extends Result {
+    static String type = "det";
+    protected List<Box> boxes = new ArrayList<Box>();
+
+    public List<Box> getBoxes() {
+        return boxes;
+    }
+
+    public void setBoxes(List<Box> boxes) {
+        this.boxes = boxes;
+    }
+
+    @Override
+    public String getType() {
+        return type;
+    }
+
+    public class Box {
+        protected int categoryId;
+        protected String category;
+        protected float score;
+        protected float[] coordinate = new float[4];
+
+        public int getCategoryId() {
+            return categoryId;
+        }
+
+        public void setCategoryId(int category_id) {
+            this.categoryId = category_id;
+        }
+
+        public String getCategory() {
+            return category;
+        }
+
+        public void setCategory(String category) {
+            this.category = category;
+        }
+
+        public float getScore() {
+            return score;
+        }
+
+        public void setScore(float score) {
+            this.score = score;
+        }
+
+        public float[] getCoordinate() {
+            return coordinate;
+        }
+
+        public void setCoordinate(float[] coordinate) {
+            this.coordinate = coordinate;
+        }
+    }
+
+}

docs/test.cpp → deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/postprocess/Result.java

-//   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,9 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include <iostream>
+package com.baidu.paddlex.postprocess;
 
-int main() {
-    std::cout << "haha" << std::endl;
-    return 0;
+public class Result {
+    static String type = "base";
+
+    public String getType() {
+        return type;
+    }
 }

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/postprocess/SegResult.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.postprocess;
+
+public class SegResult extends Result {
+    static String type = "seg";
+    protected Mask mask = new Mask();
+
+    public Mask getMask() {
+        return mask;
+    }
+
+    public void setMask(Mask mask) {
+        this.mask = mask;
+    }
+
+    @Override
+    public String getType() {
+        return type;
+    }
+
+    public class Mask {
+        protected float[] scoreData;
+        protected long[] labelData;
+        protected long[] labelShape = new long[4];
+        protected long[] scoreShape = new long[4];
+
+        public float[] getScoreData() {
+            return scoreData;
+        }
+
+        public void setScoreData(float[] score_data) {
+            this.scoreData = score_data;
+        }
+
+        public long[] getLabelData() {
+            return labelData;
+        }
+
+        public void setLabelData(long[] label_data) {
+            this.labelData = label_data;
+        }
+
+        public long[] getLabelShape() {
+            return labelShape;
+        }
+
+        public void setLabelShape(long[] labelShape) {
+            this.labelShape = labelShape;
+        }
+
+        public long[] getScoreShape() {
+            return scoreShape;
+        }
+
+        public void setScoreShape(long[] scoreShape) {
+            this.scoreShape = scoreShape;
+        }
+    }
+}

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/preprocess/ImageBlob.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.preprocess;
+
+import java.util.LinkedHashMap;
+
+public class ImageBlob {
+    // Original image height and width
+    private long[] oriImageSize = new long[]{1, 3, -1, -1};
+    // Newest image height and width after process
+    private long[] newImageSize = new long[]{1, 3, -1, -1};
+    // Reshape order, Image height and width before resize
+    private LinkedHashMap<String, int[]> reshapeInfo = new LinkedHashMap<String, int[]>();
+    // Resize scale
+    private float scale = 1;
+    // Buffer for image data after preprocessing
+    private float[] imageData;
+
+    public void clear() {
+        oriImageSize = new long[]{1, 3, -1, -1};
+        newImageSize = new long[]{1, 3, -1, -1};
+        reshapeInfo.clear();
+        imageData = null;
+    }
+
+    public long[] getOriImageSize() {
+        return oriImageSize;
+    }
+
+    public void setOriImageSize(long[] oriImageSize) {
+        this.oriImageSize = oriImageSize;
+    }
+
+    public void setOriImageSize(long dim, int idx) {
+        this.oriImageSize[idx] = dim;
+    }
+
+    public long[] getNewImageSize() {
+        return newImageSize;
+    }
+
+    public void setNewImageSize(long[] newImageSize) {
+        this.newImageSize = newImageSize;
+    }
+
+    public void setNewImageSize(long dim, int idx) {
+        this.newImageSize[idx] = dim;
+    }
+
+
+    public LinkedHashMap<String, int[]> getReshapeInfo() {
+        return reshapeInfo;
+    }
+
+    public void setReshapeInfo(LinkedHashMap<String, int[]> reshapeInfo) {
+        this.reshapeInfo = reshapeInfo;
+    }
+
+    public float getScale() {
+        return scale;
+    }
+
+    public void setScale(float scale) {
+        this.scale = scale;
+    }
+
+    public float[] getImageData() {
+        return imageData;
+    }
+
+    public void setImageData(float[] imageData) {
+        this.imageData = imageData;
+    }
+}
\ No newline at end of file

deploy/lite/android/sdk/src/main/java/com/baidu/paddlex/visual/Visualize.java

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.baidu.paddlex.visual;
+
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.util.Log;
+
+import com.baidu.paddlex.postprocess.DetResult;
+import com.baidu.paddlex.postprocess.SegResult;
+import com.baidu.paddlex.preprocess.ImageBlob;
+
+import org.opencv.core.Core;
+import org.opencv.core.CvType;
+import org.opencv.core.Mat;
+import org.opencv.core.Point;
+import org.opencv.core.Rect;
+import org.opencv.core.Scalar;
+import org.opencv.core.Size;
+import org.opencv.imgproc.Imgproc;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Map;
+
+public class Visualize {
+    protected static final String TAG = Visualize.class.getSimpleName();
+    protected float detectConfidenceThreshold = (float) 0.5;
+    protected Scalar[] colormap = new Scalar[]{};
+
+    protected void generateColorMap(int num_class) {
+        this.colormap = new Scalar[num_class];
+        this.colormap[0] = new Scalar(0, 0, 0);
+        for (int i = 0; i < num_class; i++) {
+            int j = 0;
+            int lab = i;
+            while (lab > 0) {
+                int r = (((lab >> 0) & 1) << (7 - j));
+                int g = (((lab >> 1) & 1) << (7 - j));
+                int b = (((lab >> 2) & 1) << (7 - j));
+                this.colormap[i] = new Scalar(r, g, b);
+                ++j;
+                lab >>= 3;
+            }
+        }
+    }
+
+    public float getDetectConfidenceThreshold() {
+        return detectConfidenceThreshold;
+    }
+
+    public void setDetectConfidenceThreshold(float detectConfidenceThreshold) {
+        this.detectConfidenceThreshold = detectConfidenceThreshold;
+    }
+
+    public Scalar[] getColormap() {
+        return colormap;
+    }
+
+    public void setColormap(Scalar[] colormap) {
+        this.colormap = colormap;
+    }
+
+    public void init(int num_class) {
+        generateColorMap(num_class);
+    }
+
+    public Mat draw(DetResult result, Mat visualizeMat) {
+        Paint rectPaint = new Paint();
+        rectPaint.setStyle(Paint.Style.STROKE);
+        rectPaint.setStrokeWidth(2);
+        Paint txtPaint = new Paint();
+        txtPaint.setTextSize(15);
+        txtPaint.setAntiAlias(true);
+        for (DetResult.Box box : result.getBoxes()) {
+            if (box.getScore() < detectConfidenceThreshold) {
+                continue;
+            }
+
+            String text = box.getCategory() + ":" + String.valueOf(box.getScore()).substring(0, 4);
+            Scalar roiColor = colormap[box.getCategoryId()];
+            double font_scale = 0.5;
+            int thickness = 1;
+            int font_face = Core.FONT_HERSHEY_SIMPLEX;
+
+            Point roiXyMin = new Point(box.getCoordinate()[0],box.getCoordinate()[1]);
+            Point roiXyMax = new Point(box.getCoordinate()[2],box.getCoordinate()[3]);
+            Size text_size = Imgproc.getTextSize(text, font_face,font_scale, thickness,null);
+            Imgproc.rectangle(visualizeMat, roiXyMin, roiXyMax, roiColor,2);
+
+            Point textXyMin =  new Point(box.getCoordinate()[0],box.getCoordinate()[1]-text_size.height);
+            Point textXyMax = new Point(box.getCoordinate()[0]+text_size.width,box.getCoordinate()[1]);
+            Imgproc.rectangle(visualizeMat,textXyMin, textXyMax, roiColor,-1);
+            Imgproc.putText(visualizeMat,
+                    text,
+                    roiXyMin,
+                    font_face,
+                    font_scale,
+                    new Scalar(255, 255, 255));
+        }
+        return visualizeMat;
+    }
+
+    public Mat draw(SegResult result, Mat visualizeMat, ImageBlob imageBlob, int cutoutClass) {
+        int new_h = (int)imageBlob.getNewImageSize()[2];
+        int new_w = (int)imageBlob.getNewImageSize()[3];
+        Mat mask = new Mat(new_h, new_w, CvType.CV_32FC(1));
+        float[] scoreData = new float[new_h*new_w];
+        for  (int h = 0; h < new_h; h++) {
+            for  (int w = 0; w < new_w; w++){
+                scoreData[new_h * h + w] =  (1-result.getMask().getScoreData()[cutoutClass + h * new_h + w]) * 255;
+            }
+        }
+        mask.put(0,0, scoreData);
+        mask.convertTo(mask,CvType.CV_8UC(1));
+        ListIterator<Map.Entry<String, int[]>> reverseReshapeInfo = new ArrayList<Map.Entry<String, int[]>>(imageBlob.getReshapeInfo().entrySet()).listIterator(imageBlob.getReshapeInfo().size());
+        while (reverseReshapeInfo.hasPrevious()) {
+            Map.Entry<String, int[]> entry = reverseReshapeInfo.previous();
+            if (entry.getKey().equalsIgnoreCase("padding")) {
+                Rect crop_roi = new Rect(0, 0, entry.getValue()[0], entry.getValue()[1]);
+                mask = mask.submat(crop_roi);
+            } else if (entry.getKey().equalsIgnoreCase("resize")) {
+                Size sz = new Size(entry.getValue()[0], entry.getValue()[1]);
+                Imgproc.resize(mask, mask, sz,0,0,Imgproc.INTER_LINEAR);
+            }
+        }
+        Mat dst  = new Mat();
+        List<Mat> listMat = Arrays.asList(visualizeMat, mask);
+        Core.merge(listMat, dst);
+
+        return dst;
+    }
+}

deploy/lite/android/sdk/src/main/res/values/strings.xml

+<resources>
+    <string name="app_name">PaddleX</string>
+</resources>

deploy/lite/android/sdk/src/test/java/com/example/paddlex/ExampleUnitTest.java

+package com.example.paddlex;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file

deploy/lite/export_lite.py

-#copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
 #
 #Licensed under the Apache License, Version 2.0 (the "License");
 #you may not use this file except in compliance with the License.
@@ -21,7 +21,8 @@ def export_lite():
     opt = lite.Opt()
     model_file = os.path.join(FLAGS.model_dir, '__model__')
     params_file = os.path.join(FLAGS.model_dir, '__params__')
-    opt.run_optimize("", model_file, params_file, FLAGS.place, FLAGS.save_file)
+    opt.run_optimize("", model_file, params_file, 'naive_buffer', FLAGS.place,
+                     FLAGS.save_file)
 
 
 if __name__ == '__main__':

docs/FAQ.md

-# 常见问题
-
-## 1. 训练参数如何调整
-> 参考[参数调整文档](appendix/parameters.md)
-
-## 2. 训练过程因显存不够出错
-
-> 通过使用在终端`nvidia-smi`命令，查看GPU是否被其它任务占用，尝试清除其它任务；  
-> 调低训练时的`batch_size`参数，从而降低显存的要求，注意需等比例调低`learning_rate`等参数；
-> 选用更小的模型或backbone。
-
-## 3. 是否有更小的模型，适用于更低配置的设备上运行
-> 可以使用模型裁剪，参考文档[模型裁剪使用教程](slim/prune.md)，通过调整裁剪参数，可以控制模型裁剪后的大小，在实际实验中，如VOC检测数据，使用yolov3-mobilenet，原模型大小为XXM，裁剪后为XX M，精度基本保持不变
-
-## 4. 如何配置训练时GPU的卡数
-> 通过在终端export环境变量，或在Python代码中设置，可参考文档[CPU/多卡GPU训练](appendix/gpu_configure.md)
-
-## 5. 想将之前训练的模型参数上继续训练
-> 在训练调用`train`接口时，将`pretrain_weights`设为之前的模型保存路径即可
-
-
-## 6. PaddleX保存的模型分为正常训练过程中产生、裁剪训练产生、导出为部署模型和量化保存这么多种，有什么差别，怎么区分
-
-**不同模型的功能差异**
-
->1.正常模型训练保存  
->
->>模型在正常训练过程，每间隔n个epoch保存的模型目录，模型可作为预训练模型参数，可使用PaddleX加载预测、或导出部署模型  
-
->2.裁剪训练保存  
->
->>模型在裁剪训练过程，每间隔n个epoch保存的模型目录，模型不可作为预训练模型参数，可使用PaddleX加载预测、或导出部署模型  
-
->3.导出部署模型  
->
->>为了模型在服务端部署，导出的模型目录，不可作为预训练模型参数，可使用PaddleX加载预测
-
->4.量化保存模型  
->
->>为了提升模型预测速度，将模型参数进行量化保存的模型目录，模型不可作为预训练模型参数，可使用PaddleX加载预测  
-
-**区分方法**  
->> 通过模型目录下model.yml文件中`status`字段来区别不同的模型类型, 'Normal'、'Prune'、'Infer'、'Quant'分别表示正常模型训练保存、裁剪训练保存、导出的部署模型、量化保存模型
-
-
-## 7. 模型训练需要太久时间，或者训练速度太慢，怎么提速
-> 1.模型训练速度与用户选定的模型大小，和设定的`batch_size`相关，模型大小可直接参考[模型库](model_zoo.md)中的指标，一般而言，模型越大，训练速度就越慢；  
-
-> 2.在模型速度之外，模型训练完成所需的时间又与用户设定的`num_epochs`迭代轮数相关，用户可以通过观察模型在验证集上的指标来决定是否提示结束掉训练进程（训练时设定`save_interval_epochs`参数，训练过程会每间隔`save_interval_epochs`轮数在验证集上计算指标，并保存模型）；  
-
-## 8. 如何设定迭代的轮数
-> 1. 用户自行训练时，如不确定迭代的轮数，可以将轮数设高一些，同时注意设置`save_interval_epochs`，这样模型迭代每间隔相应轮数就会在验证集上进行评估和保存，可以根据不同轮数模型在验证集上的评估指标，判断模型是否已经收敛，若模型已收敛，可以自行结束训练进程
->
-## 9. 只有CPU，没有GPU，如何提升训练速度
-> 当没有GPU时，可以根据自己的CPU配置，选择是否使用多CPU进行训练，具体配置方式可以参考文档[多卡CPU/GPU训练](appendix/gpu_configure.md)
->
-## 10. 电脑不能联网，训练时因为下载预训练模型失败，如何解决
-> 可以预先通过其它方式准备好预训练模型，然后训练时自定义`pretrain_weights`即可，可参考文档[无联网模型训练](how_to_offline_run.md)
-
-## 11. 每次训练新的模型，都需要重新下载预训练模型，怎样可以下载一次就搞定
-> 1.可以按照9的方式来解决这个问题  
-> 2.每次训练前都设定`paddlex.pretrain_dir`路径，如设定`paddlex.pretrain_dir='/usrname/paddlex`，如此下载完的预训练模型会存放至`/usrname/paddlex`目录下，而已经下载在该目录的模型也不会再次重复下载
-
-## 12. PaddleX GUI启动时提示"Failed to execute script PaddleX"，如何解决？
-> 1. 请检查目标机器上PaddleX程序所在路径是否包含中文。目前暂不支持中文路径，请尝试将程序移动到英文目录。
-> 2. 如果您的系统是Windows 7或者Windows Server 2012时，原因是缺少MFPlat.DLL/MF.dll/MFReadWrite.dll等OpenCV依赖的DLL，请按如下方式安装桌面体验：通过“我的电脑”-->“属性”-->"管理"打开服务器管理器，点击右上角“管理”选择“添加角色和功能”。点击“服务器选择”-->“功能”，拖动滚动条到最下端，点开“用户界面和基础结构”，勾选“桌面体验”后点击“安装”，等安装完成尝试再次运行PaddleX。
-> 3. 请检查目标机器上是否有其他的PaddleX程序或者进程在运行中，如有请退出或者重启机器看是否解决
-> 4. 请确认运行程序的用户是否有管理员权限，如非管理员权限用户请尝试使用管理员运行看是否成功

docs/apis/index.rst

-PaddleX API说明文档
+API接口说明
 ============================
 
 .. toctree::
    :maxdepth: 2
 
    transforms/index.rst
-   datasets/index.rst
+   datasets.md
    models/index.rst
    slim.md
-   load_model.md
    visualize.md
-   deploy.md
+   interpret.md