diff --git a/app/service/generate_image/service.py b/app/service/generate_image/service.py
index 2cbd2dd..b78df3c 100644
--- a/app/service/generate_image/service.py
+++ b/app/service/generate_image/service.py
@@ -78,7 +78,10 @@ class GenerateImage:
             self.redis_client.set(self.tasks_id, json.dumps(self.generate_data))
         else:
             image = result.as_numpy("generated_image")
-            image_result = cv2.cvtColor(np.squeeze(image.astype(np.uint8)), cv2.COLOR_BGR2RGB)
+            if self.mode == "img2img":
+                image_result = np.squeeze(image.astype(np.uint8))
+            else:
+                image_result = cv2.cvtColor(np.squeeze(image.astype(np.uint8)), cv2.COLOR_BGR2RGB)
             is_smudge = True
             if self.category == "sketch":
                 # 去背景