fix vehicle config

ppcls/configs/Vehicle/ResNet50.yaml

@@ -73,9 +73,6 @@ DataLoader:
         bbox_crop: True
         cls_label_path: "./dataset/CompCars/train_test_split/classification/train_label.txt"
         transform_ops:
-          - DecodeImage:
-              to_rgb: True
-              channel_first: False
           - ResizeImage:
               size: 224
           - RandFlipImage:
@@ -113,9 +110,6 @@ DataLoader:
         cls_label_path: "./dataset/CompCars/train_test_split/classification/test_label.txt"
         bbox_crop: True
         transform_ops:
-          - DecodeImage:
-              to_rgb: True
-              channel_first: False
           - ResizeImage:
               size: 224
           - NormalizeImage:

ppcls/data/dataloader/vehicle_dataset.py

@@ -117,8 +117,8 @@ class VeriWild(Dataset):
 
     def __getitem__(self, idx):
         try:
-            img = cv2.imread(self.images[idx])
-            img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+            with open(self.images[idx], 'rb') as f:
+                img = f.read()
             if self._transform_ops:
                 img = transform(img, self._transform_ops)
             img = img.transpose((2, 0, 1))