diff --git a/ppocr/data/imaug/operators.py b/ppocr/data/imaug/operators.py
index 2ec51c286d..920e7fee13 100644
--- a/ppocr/data/imaug/operators.py
+++ b/ppocr/data/imaug/operators.py
@@ -28,38 +28,6 @@ import numpy as np
 class DecodeImage(object):
     """ decode image """
 
-    def __init__(self, img_mode='RGB', channel_first=False, **kwargs):
-        self.img_mode = img_mode
-        self.channel_first = channel_first
-
-    def __call__(self, data):
-        img = data['image']
-        if six.PY2:
-            assert type(img) is str and len(
-                img) > 0, "invalid input 'img' in DecodeImage"
-        else:
-            assert type(img) is bytes and len(
-                img) > 0, "invalid input 'img' in DecodeImage"
-        img = np.frombuffer(img, dtype='uint8')
-        img = cv2.imdecode(img, 1)
-        if img is None:
-            return None
-        if self.img_mode == 'GRAY':
-            img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
-        elif self.img_mode == 'RGB':
-            assert img.shape[2] == 3, 'invalid shape of image[%s]' % (img.shape)
-            img = img[:, :, ::-1]
-
-        if self.channel_first:
-            img = img.transpose((2, 0, 1))
-
-        data['image'] = img
-        return data
-
-
-class NRTRDecodeImage(object):
-    """ decode image """
-
     def __init__(self,
                  img_mode='RGB',
                  channel_first=False,
@@ -78,12 +46,44 @@ class NRTRDecodeImage(object):
             assert type(img) is bytes and len(
                 img) > 0, "invalid input 'img' in DecodeImage"
         img = np.frombuffer(img, dtype='uint8')
-
         if self.ignore_orientation:
             img = cv2.imdecode(img, cv2.IMREAD_IGNORE_ORIENTATION |
                                cv2.IMREAD_COLOR)
         else:
             img = cv2.imdecode(img, 1)
+        if img is None:
+            return None
+        if self.img_mode == 'GRAY':
+            img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
+        elif self.img_mode == 'RGB':
+            assert img.shape[2] == 3, 'invalid shape of image[%s]' % (img.shape)
+            img = img[:, :, ::-1]
+
+        if self.channel_first:
+            img = img.transpose((2, 0, 1))
+
+        data['image'] = img
+        return data
+
+
+class NRTRDecodeImage(object):
+    """ decode image """
+
+    def __init__(self, img_mode='RGB', channel_first=False, **kwargs):
+        self.img_mode = img_mode
+        self.channel_first = channel_first
+
+    def __call__(self, data):
+        img = data['image']
+        if six.PY2:
+            assert type(img) is str and len(
+                img) > 0, "invalid input 'img' in DecodeImage"
+        else:
+            assert type(img) is bytes and len(
+                img) > 0, "invalid input 'img' in DecodeImage"
+        img = np.frombuffer(img, dtype='uint8')
+
+        img = cv2.imdecode(img, 1)
 
         if img is None:
             return None