add table to hub serving

deploy/hubserving/readme.md

 [English](readme_en.md) | 简体中文
 
+- [基于PaddleHub Serving的服务部署](#基于paddlehub-serving的服务部署)
+  - [快速启动服务](#快速启动服务)
+    - [1. 准备环境](#1-准备环境)
+    - [2. 下载推理模型](#2-下载推理模型)
+    - [3. 安装服务模块](#3-安装服务模块)
+    - [4. 启动服务](#4-启动服务)
+      - [方式1. 命令行命令启动（仅支持CPU）](#方式1-命令行命令启动仅支持cpu)
+      - [方式2. 配置文件启动（支持CPU、GPU）](#方式2-配置文件启动支持cpugpu)
+  - [发送预测请求](#发送预测请求)
+  - [返回结果格式说明](#返回结果格式说明)
+  - [自定义修改服务模块](#自定义修改服务模块)
+
+
 PaddleOCR提供2种服务部署方式：
 - 基于PaddleHub Serving的部署：代码路径为"`./deploy/hubserving`"，按照本教程使用；
 - 基于PaddleServing的部署：代码路径为"`./deploy/pdserving`"，使用方法参考[文档](../../deploy/pdserving/README_CN.md)。
@@ -149,10 +162,11 @@ hub serving start -c deploy/hubserving/ocr_system/config.json
 `http://127.0.0.1:8866/predict/ocr_cls`  
 `http://127.0.0.1:8867/predict/ocr_rec`  
 `http://127.0.0.1:8868/predict/ocr_system`  
-- **image_path**：测试图像路径，可以是单张图片路径，也可以是图像集合目录路径  
+- **image_dir**：测试图像路径，可以是单张图片路径，也可以是图像集合目录路径  
+- **visualize**：是否可视化结果，默认为False  
 
 访问示例：  
-```python tools/test_hubserving.py http://127.0.0.1:8868/predict/ocr_system ./doc/imgs/```
+```python tools/test_hubserving.py --server_url=http://127.0.0.1:8868/predict/ocr_system --image_dir./doc/imgs/ --visualize=false```
 
 ## 返回结果格式说明
 返回结果为列表（list），列表中的每一项为词典（dict），词典一共可能包含3种字段，信息如下：
@@ -170,7 +184,7 @@ hub serving start -c deploy/hubserving/ocr_system/config.json
 |  ----  |  ----  |  ----  |  ----  |  ----  |
 |angle| | ✔ | | ✔ |
 |text| | |✔|✔|
-|confidence| |✔ |✔|✔|
+|confidence| |✔ |✔| |
 |text_region| ✔| | |✔ |
 
 **说明：** 如果需要增加、删除、修改返回字段，可在相应模块的`module.py`文件中进行修改，完整流程参考下一节自定义修改服务模块。

deploy/hubserving/readme_en.md

 English | [简体中文](readme.md)
 
+- [Service deployment based on PaddleHub Serving](#service-deployment-based-on-paddlehub-serving)
+  - [Quick start service](#quick-start-service)
+    - [1. Prepare the environment](#1-prepare-the-environment)
+    - [2. Download inference model](#2-download-inference-model)
+    - [3. Install Service Module](#3-install-service-module)
+    - [4. Start service](#4-start-service)
+      - [Way 1. Start with command line parameters (CPU only)](#way-1-start-with-command-line-parameters-cpu-only)
+      - [Way 2. Start with configuration file（CPU、GPU）](#way-2-start-with-configuration-filecpugpu)
+  - [Send prediction requests](#send-prediction-requests)
+  - [Returned result format](#returned-result-format)
+  - [User defined service module modification](#user-defined-service-module-modification)
+
+
 PaddleOCR provides 2 service deployment methods:
 - Based on **PaddleHub Serving**: Code path is "`./deploy/hubserving`". Please follow this tutorial.
 - Based on **PaddleServing**: Code path is "`./deploy/pdserving`". Please refer to the [tutorial](../../deploy/pdserving/README.md) for usage.
@@ -154,11 +167,12 @@ For example, if the detection, recognition and 2-stage serial services are start
 `http://127.0.0.1:8866/predict/ocr_cls`  
 `http://127.0.0.1:8867/predict/ocr_rec`  
 `http://127.0.0.1:8868/predict/ocr_system`  
-- **image_path**：Test image path, can be a single image path or an image directory path
+- **image_dir**：Test image path, can be a single image path or an image directory path
+- **visualize**：Whether to visualize the results, the default value is False
 
 **Eg.**
 ```shell
-python tools/test_hubserving.py http://127.0.0.1:8868/predict/ocr_system ./doc/imgs/
+python tools/test_hubserving.py --server_url=http://127.0.0.1:8868/predict/ocr_system --image_dir./doc/imgs/ --visualize=false`
 ```
 
 ## Returned result format
@@ -177,7 +191,7 @@ The fields returned by different modules are different. For example, the results
 |  ----  |  ----  |  ----  |  ----  |  ----  |
 |angle| | ✔ | | ✔ |
 |text| | |✔|✔|
-|confidence| |✔ |✔|✔|
+|confidence| |✔ |✔| |
 |text_region| ✔| | |✔ |
 
 **Note：** If you need to add, delete or modify the returned fields, you can modify the file `module.py` of the corresponding module. For the complete process, refer to the user-defined modification service module in the next section.

deploy/hubserving/structure_table/config.json

+{
+    "modules_info": {
+        "structure_table": {
+            "init_args": {
+                "version": "1.0.0",
+                "use_gpu": true
+            },
+            "predict_args": {
+            }
+        }
+    },
+    "port": 8869,
+    "use_multiprocess": false,
+    "workers": 2
+}
+

deploy/hubserving/structure_table/module.py

+# -*- coding:utf-8 -*-
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import os
+import sys
+sys.path.insert(0, ".")
+import copy
+
+import time
+import paddlehub
+from paddlehub.common.logger import logger
+from paddlehub.module.module import moduleinfo, runnable, serving
+import cv2
+import numpy as np
+import paddlehub as hub
+
+from tools.infer.utility import base64_to_cv2
+from ppstructure.table.predict_table import TableSystem as _TableSystem
+from ppstructure.predict_system import save_structure_res
+from ppstructure.utility import parse_args
+from deploy.hubserving.structure_table.params import read_params
+
+
+@moduleinfo(
+    name="structure_table",
+    version="1.0.0",
+    summary="PP-Structure table service",
+    author="paddle-dev",
+    author_email="paddle-dev@baidu.com",
+    type="cv/table_recognition")
+class TableSystem(hub.Module):
+    def _initialize(self, use_gpu=False, enable_mkldnn=False):
+        """
+        initialize with the necessary elements
+        """
+        cfg = self.merge_configs()
+        cfg.use_gpu = use_gpu
+        if use_gpu:
+            try:
+                _places = os.environ["CUDA_VISIBLE_DEVICES"]
+                int(_places[0])
+                print("use gpu: ", use_gpu)
+                print("CUDA_VISIBLE_DEVICES: ", _places)
+                cfg.gpu_mem = 8000
+            except:
+                raise RuntimeError(
+                    "Environment Variable CUDA_VISIBLE_DEVICES is not set correctly. If you wanna use gpu, please set CUDA_VISIBLE_DEVICES via export CUDA_VISIBLE_DEVICES=cuda_device_id."
+                )
+        cfg.ir_optim = True
+        cfg.enable_mkldnn = enable_mkldnn
+
+        self.table_sys = _TableSystem(cfg)
+
+    def merge_configs(self):
+        # deafult cfg
+        backup_argv = copy.deepcopy(sys.argv)
+        sys.argv = sys.argv[:1]
+        cfg = parse_args()
+
+        update_cfg_map = vars(read_params())
+
+        for key in update_cfg_map:
+            cfg.__setattr__(key, update_cfg_map[key])
+
+        sys.argv = copy.deepcopy(backup_argv)
+        return cfg
+
+    def read_images(self, paths=[]):
+        images = []
+        for img_path in paths:
+            assert os.path.isfile(
+                img_path), "The {} isn't a valid file.".format(img_path)
+            img = cv2.imread(img_path)
+            if img is None:
+                logger.info("error in loading image:{}".format(img_path))
+                continue
+            images.append(img)
+        return images
+
+    def predict(self, images=[], paths=[]):
+        """
+        Get the chinese texts in the predicted images.
+        Args:
+            images (list(numpy.ndarray)): images data, shape of each is [H, W, C]. If images not paths
+            paths (list[str]): The paths of images. If paths not images
+        Returns:
+            res (list): The result of chinese texts and save path of images.
+        """
+
+        if images != [] and isinstance(images, list) and paths == []:
+            predicted_data = images
+        elif images == [] and isinstance(paths, list) and paths != []:
+            predicted_data = self.read_images(paths)
+        else:
+            raise TypeError("The input data is inconsistent with expectations.")
+
+        assert predicted_data != [], "There is not any image to be predicted. Please check the input data."
+
+        all_results = []
+        for img in predicted_data:
+            if img is None:
+                logger.info("error in loading image")
+                all_results.append([])
+                continue
+            starttime = time.time()
+            pred_html = self.table_sys(img)
+            elapse = time.time() - starttime
+            logger.info("Predict time: {}".format(elapse))
+
+            all_results.append(pred_html)
+        return all_results
+
+    @serving
+    def serving_method(self, images, **kwargs):
+        """
+        Run as a service.
+        """
+        images_decode = [base64_to_cv2(image) for image in images]
+        results = self.predict(images_decode, **kwargs)
+        return results
+
+
+if __name__ == '__main__':
+    table_system = TableSystem()
+    table_system._initialize()
+    image_path = ['./doc/table/table.jpg']
+    res = table_system.predict(paths=image_path)
+    print(res)

deploy/hubserving/structure_table/params.py

+# -*- coding:utf-8 -*-
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+from deploy.hubserving.ocr_system.params import read_params as pp_ocr_read_params
+
+
+def read_params():
+    cfg = pp_ocr_read_params()
+
+    # params for table structure model
+    cfg.table_max_len = 488
+    cfg.table_model_dir = './inference/en_ppocr_mobile_v2.0_table_structure_infer/'
+    cfg.table_char_type = 'en'
+    cfg.table_char_dict_path = './ppocr/utils/dict/table_structure_dict.txt'
+    cfg.show_log = False
+    return cfg

tools/test_hubserving.py

@@ -25,7 +25,9 @@ import numpy as np
 import time
 from PIL import Image
 from ppocr.utils.utility import get_image_file_list
-from tools.infer.utility import draw_ocr, draw_boxes
+from tools.infer.utility import draw_ocr, draw_boxes, str2bool
+from ppstructure.utility import draw_structure_result
+from ppstructure.predict_system import save_structure_res, to_excel
 
 import requests
 import json
@@ -69,8 +71,8 @@ def draw_server_result(image_file, res):
         return draw_img
 
 
-def main(url, image_path):
-    image_file_list = get_image_file_list(image_path)
+def main(args):
+    image_file_list = get_image_file_list(args.image_dir)
     is_visualize = False
     headers = {"Content-type": "application/json"}
     cnt = 0
@@ -80,18 +82,25 @@ def main(url, image_path):
         if img is None:
             logger.info("error in loading image:{}".format(image_file))
             continue
-
+        img_name = os.path.basename(image_file)
         # 发送HTTP请求
         starttime = time.time()
         data = {'images': [cv2_to_base64(img)]}
-        r = requests.post(url=url, headers=headers, data=json.dumps(data))
+        r = requests.post(
+            url=args.server_url, headers=headers, data=json.dumps(data))
         elapse = time.time() - starttime
         total_time += elapse
         logger.info("Predict time of %s: %.3fs" % (image_file, elapse))
         res = r.json()["results"][0]
         logger.info(res)
 
-        if is_visualize:
+        if args.visualize:
+            draw_img = None
+            if 'structure_table' in args.server_url:
+                to_excel(res, './{}.xlsx'.format(img_name))
+            elif 'structure_system' in args.server_url:
+                pass
+            else:
                 draw_img = draw_server_result(image_file, res)
             if draw_img is not None:
                 draw_img_save = "./server_results/"
@@ -108,10 +117,16 @@ def main(url, image_path):
     logger.info("avg time cost: {}".format(float(total_time) / cnt))
 
 
+def parse_args():
+    import argparse
+    parser = argparse.ArgumentParser(description="args for hub serving")
+    parser.add_argument("--server_url", type=str, required=True)
+    parser.add_argument("--image_dir", type=str, required=True)
+    parser.add_argument("--visualize", type=str2bool, default=False)
+    args = parser.parse_args()
+    return args
+
+
 if __name__ == '__main__':
-    if len(sys.argv) != 3:
-        logger.info("Usage: %s server_url image_path" % sys.argv[0])
-    else:
-        server_url = sys.argv[1]
-        image_path = sys.argv[2]
-        main(server_url, image_path)
+    args = parse_args()
+    main(args)