NMM-HD

碟片输出d2v，截图。未经过deint等任何处理。
如图所示，整片里面，红色的部分都有明显的锯齿，求处理方式……

怎麼看怎麼像搞搞.....

Try UToY and VToY, and post the screenshot of the results.

比利叔表示請用UToY和VToY，並將結果截圖PO上來他好幫你判斷

大概是chroma subsampling用了pointresize
可以先转为RGB再转为YV12，锯齿可以减轻些
要求较高的话，可以转为16bit RGB,再转为10bit yv12

感谢诸位菊苣回复

Billy Herrington 写了：Try UToY and VToY, and post the screenshot of the results.

source UToY VToY

zhongpang 写了：大概是chroma subsampling用了pointresize
可以先转为RGB再转为YV12，锯齿可以减轻些
要求较高的话，可以转为16bit RGB,再转为10bit yv12

ToRGB32_ToYV12 ToRGB32_ToYV12锯齿症状略减轻。
转为16bit RGB,再转为10bit yv12
呃，不好意思，这个我不会做…

坏的chroma subsample 如果不考虑损失就这样好了 last.mergechroma (last.blur (1))

feisty2 写了：坏的chroma subsample 如果不考虑损失就这样好了 last.mergechroma (last.blur (1))

感谢菊苣回复~
假如考虑损失，有更好的建议吗？

海波湛蓝 写了：

feisty2 写了：坏的chroma subsample 如果不考虑损失就这样好了 last.mergechroma (last.blur (1))

感谢菊苣回复~
假如考虑损失，有更好的建议吗？

我明明是小白...更好的等论坛里的众菊苣解答吧

Assuming your source is truly 4:2:0. ( Things are slightly different if it is 4:2:2, but quite similar )

Not likely to be CUE since the aliasing seems to occur only horizontally, not vertically. Possibly a bad 4:1:1->4:2:0 interpolation.

Try PointResize U & V planes back to half height, and use some good resampler to get it back. For example:
[syntax lang="avisynth"]MergeChroma(PointResize(width, height/2).Spline64Resize(width, height, 0, .5))[/syntax]( If your source is 4:2:2 you'd better tweak the values in the resamplers, as it should came from a bad 4:2:0->4:2:2 or 4:1:1->4:2:2 interpolation )

This just does things (almost) correct. You might want some more filters to do further fixes, or mask the subtitles as they seem to be artefact-free.