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请问这个去除一拍二依赖阈值么,精度怎么样,会不会误删背景 #2
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我用的是ffmpeg的mpdecimate滤镜,只是简单地分块比对像素值,精度不是很高,但应该够用,一般情况下不会误删。 |
可以除去一拍三么 |
不做限制的话可以去除任意长度的连续重复帧 |
这个除重算法大概是一个什么思路呢(能简单描述下么 |
这是ffmpeg官方文档里对mpdecimate的解释:https://ffmpeg.org/ffmpeg-filters.html#mpdecimate 至于我新写的那个方法,就是计算某帧与前一帧的ssim以及逐像素差值的绝对值的最大值,ssim就不用说了,加入最大像素差值的判断是为了防止某些细微的变化无法使ssim降到阈值以下而被误删 |
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