Update app.py

app.py

@@ -427,7 +427,7 @@ def draw_mask(l, c, k, v, d, evt: gr.EventData):
     
     _, bg, mask = cv2.floodFill(bg, None, (x, y), 1, 0, 0 #, (
         #4 | cv2.FLOODFILL_FIXED_RANGE | cv2.FLOODFILL_MASK_ONLY | 255 << 8)
-    )[1] # 255 << 8 tells to fill with the value 255)
+    ) # 255 << 8 tells to fill with the value 255)
     grad_x = cv2.convertScaleAbs(cv2.Sobel(mask, ddepth, 1, 0, ksize=3, scale=scale, delta=delta, borderType=cv2.BORDER_DEFAULT))
     grad_y = cv2.convertScaleAbs(cv2.Sobel(mask, ddepth, 0, 1, ksize=3, scale=scale, delta=delta, borderType=cv2.BORDER_DEFAULT))