diff --git a/app/service/generate_image/service.py b/app/service/generate_image/service.py
index d6e9771..03b24be 100644
--- a/app/service/generate_image/service.py
+++ b/app/service/generate_image/service.py
@@ -85,17 +85,17 @@ class GenerateImage:
             image_result = cv2.cvtColor(np.squeeze(image.astype(np.uint8)), cv2.COLOR_RGB2BGR)
             is_smudge = True
             if self.category == "sketch":
+                # 色阶调整
+                cutoff = 1
+                levels_img = autoLevels(image_result, cutoff)
+                # 亮度调整
+                luminance = luminance_adjust(0.3, levels_img)
+                # 去背景
+                remove_bg_image = remove_background(luminance)
                 # 人脸检测
-                if face_detect_pic(image_result) > 0:
+                if face_detect_pic(remove_bg_image) > 0:
                     is_smudge = False
                 else:
-                    # 色阶调整
-                    cutoff = 1
-                    levels_img = autoLevels(image_result, cutoff)
-                    # 亮度调整
-                    luminance = luminance_adjust(0.3, levels_img)
-                    # 去背景
-                    remove_bg_image = remove_background(luminance)
                     # 污点/
                     is_smudge, not_smudge_image = stain_detection(remove_bg_image)
                     # 类型识别
diff --git a/app/service/generate_image/utils/image_processing.py b/app/service/generate_image/utils/image_processing.py
index 3530a08..c2910ee 100644
--- a/app/service/generate_image/utils/image_processing.py
+++ b/app/service/generate_image/utils/image_processing.py
@@ -263,6 +263,12 @@ def face_detect_pic(image):
     # 3、检测人脸（用灰度图检测，返回人脸矩形坐标(4个角)）
     faces_rect = face_detector.detectMultiScale(gray, 1.05, 3)
 
+    if DEBUG:
+        dst = image.copy()
+        for x, y, w, h in faces_rect:
+            cv2.rectangle(dst, (x, y), (x + w, y + h), (0, 0, 255), 3)  # 画出矩形框
+        cv2.imshow("", dst)
+        cv2.waitKey(0)
     return len(faces_rect)