Update utils_mask.py

utils_mask.py

@@ -86,7 +86,7 @@ def get_mask_location(model_type, category, model_parse: Image.Image, keypoint:
         parser_mask_changeable += np.logical_and(parse_array, np.logical_not(parser_mask_fixed))
         
         # Include leg parts for gap filling
-        parse_mask += (parse_array == 12).astype(np.float32) + \
+        parse_mask = (parse_array == 12).astype(np.float32) + \
                       (parse_array == 13).astype(np.float32)
 
         # Fill gaps between legs