标题栏 window 在第 2 个 window 中短暂出现,并会消失几秒钟 [英]Title bar window appeared briefly in the 2nd window and would disappear a few seconds
OpenCV:在一个窗口中记录素材,并在第二个窗口中显示相同的视频,但仅具有轮廓 [英]OpenCV: record footage in one window and Display the same video in 2nd window but with contours only