diff --git a/app/service/design/items/pipelines/contour_detection.py b/app/service/design/items/pipelines/contour_detection.py
index 018dbca..487d2d6 100644
--- a/app/service/design/items/pipelines/contour_detection.py
+++ b/app/service/design/items/pipelines/contour_detection.py
@@ -43,7 +43,8 @@ class ContourDetection(object):
                 result['mask'] = Mask
             else:
                 result['mask'] = cv2.bitwise_and(Mask, result['pre_mask'])
-
+            result['front_mask'] = result['mask']
+            result['back_mask'] = result['mask']
         return result
 
     @staticmethod