enable yolov3 set input size with image_shape in yml (#3141)

PaddleCV/PaddleDetection/configs/yolov3_darknet.yml

@@ -69,6 +69,7 @@ YoloTrainFeed:
 
 YoloEvalFeed:
   batch_size: 8
+  image_shape: [3, 608, 608]
   dataset:
     dataset_dir: dataset/coco
     annotation: annotations/instances_val2017.json
@@ -76,5 +77,6 @@ YoloEvalFeed:
 
 YoloTestFeed:
   batch_size: 1
+  image_shape: [3, 608, 608]
   dataset:
     annotation: dataset/coco/annotations/instances_val2017.json

PaddleCV/PaddleDetection/configs/yolov3_darknet_voc.yml

@@ -71,6 +71,7 @@ YoloTrainFeed:
 
 YoloEvalFeed:
   batch_size: 8
+  image_shape: [3, 608, 608]
   dataset:
     dataset_dir: dataset/voc
     annotation: VOCdevkit/VOC_all/ImageSets/Main/val.txt
@@ -79,5 +80,6 @@ YoloEvalFeed:
 
 YoloTestFeed:
   batch_size: 1
+  image_shape: [3, 608, 608]
   dataset:
     use_default_label: true

PaddleCV/PaddleDetection/configs/yolov3_mobilenet_v1.yml

@@ -70,6 +70,7 @@ YoloTrainFeed:
 
 YoloEvalFeed:
   batch_size: 8
+  image_shape: [3, 608, 608]
   dataset:
     dataset_dir: dataset/coco
     annotation: annotations/instances_val2017.json
@@ -77,5 +78,6 @@ YoloEvalFeed:
 
 YoloTestFeed:
   batch_size: 1
+  image_shape: [3, 608, 608]
   dataset:
     annotation: dataset/coco/annotations/instances_val2017.json

PaddleCV/PaddleDetection/configs/yolov3_mobilenet_v1_voc.yml

@@ -72,6 +72,7 @@ YoloTrainFeed:
 
 YoloEvalFeed:
   batch_size: 8
+  image_shape: [3, 608, 608]
   dataset:
     dataset_dir: dataset/voc
     annotation: VOCdevkit/VOC_all/ImageSets/Main/val.txt
@@ -80,5 +81,6 @@ YoloEvalFeed:
 
 YoloTestFeed:
   batch_size: 1
+  image_shape: [3, 608, 608]
   dataset:
     use_default_label: true

PaddleCV/PaddleDetection/configs/yolov3_r34.yml

@@ -72,6 +72,7 @@ YoloTrainFeed:
 
 YoloEvalFeed:
   batch_size: 8
+  image_shape: [3, 608, 608]
   dataset:
     dataset_dir: dataset/coco
     annotation: annotations/instances_val2017.json
@@ -79,5 +80,6 @@ YoloEvalFeed:
 
 YoloTestFeed:
   batch_size: 1
+  image_shape: [3, 608, 608]
   dataset:
     annotation: dataset/coco/annotations/instances_val2017.json

PaddleCV/PaddleDetection/configs/yolov3_r34_voc.yml

@@ -74,6 +74,7 @@ YoloTrainFeed:
 
 YoloEvalFeed:
   batch_size: 8
+  image_shape: [3, 608, 608]
   dataset:
     dataset_dir: dataset/voc
     annotation: VOCdevkit/VOC_all/ImageSets/Main/val.txt
@@ -82,5 +83,6 @@ YoloEvalFeed:
 
 YoloTestFeed:
   batch_size: 1
+  image_shape: [3, 608, 608]
   dataset:
     use_default_label: true

PaddleCV/PaddleDetection/ppdet/data/data_feed.py

@@ -942,6 +942,13 @@ class YoloEvalFeed(DataFeed):
         self.mode = 'VAL'
         self.bufsize = 128
 
+        # support image shape config, resize image with image_shape
+        for i, trans in enumerate(sample_transforms):
+            if isinstance(trans, ResizeImage):
+                sample_transforms[i] = ResizeImage(
+                        target_size=self.image_shape[-1],
+                        interp=trans.interp)
+
 
 @register
 class YoloTestFeed(DataFeed):
@@ -988,4 +995,11 @@ class YoloTestFeed(DataFeed):
             use_process=use_process)
         self.mode = 'TEST'
         self.bufsize = 128
+
+        # support image shape config, resize image with image_shape
+        for i, trans in enumerate(sample_transforms):
+            if isinstance(trans, ResizeImage):
+                sample_transforms[i] = ResizeImage(
+                        target_size=self.image_shape[-1],
+                        interp=trans.interp)
 # yapf: enable