Update app.py

app.py

@@ -434,7 +434,7 @@ def draw_mask(l, t, v, d, evt: gr.EventData):
       #for i in range(l):
       #    bg[(bg >= i*255/l) & (bg < (i+1)*255/l)] = i*255/(l-1)
       bg = cv2.convertScaleAbs(palette[bg]).astype(np.uint8) # Converting image back to uint
-      bg[mask>0 or bg==255] = 254
+      bg[(mask>0) | (bg==255)] = 254
 
       params["fnum"] = frame_selected
       params["l"] = l