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[请教]avs中某些降噪造成的线条周围的毛边怎么弄掉?

楼层直达
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只看该作者 15楼 发表于: 2006-08-09
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APPENDIX A: BlindPP() Notes Table of Contents

Blocks result from the 8x8-pixel DCT used by the MPEG encoder. So first, you must be sure that the blocks that you want to deblock are still aligned at 8-pixel boundaries. That means no cropping and no resizing before you apply BlindPP(). If your source is encoded interlaced, set iPP=true, if it's progressive then the default is already correct (iPP=false).

The parameters are: quant, cpu2, moderate_h, and moderate_v.

quant specifies the overall strength at which the deblocking process is to perform.

Set cpu2 to "xxxxoo" for horizontal and vertical deblocking on luma and chroma, to "xooxoo" for horizontal luma and vertical chroma deblocking, etc. You get the idea.

moderate_h and moderate_v specify the horizontal and vertical sensitivities, that is, where to perform deblocking, and where not to. They control the sensitivity for recognizing that a block is present.

quant=2, moderate_h=35-45, moderate_v=45-55 will give you a very gentle softening on strong, clearly visible blocks only. It will retain very much detail and sharpness, but will also leave intact weaker blocks, and not totally kill stronger ones.

quant=16, moderate_h=15-20, moderate_v=20-30 will perform rather strong deblocking on almost anything that perhaps could be a block, but will also smooth away a lot of detail and sharpness.

The rest is up to you, your taste, and your source material.

One other example... Since the excellent denoiser PixieDust() may sometimes cause blocking by itself in moving areas, I sometimes do this:

PixieDust(2).BlindPP(quant=8, cpu2="xxxxoo", moderate_h=45, moderate_v=55)This takes away a good amount of the most visible blocking, if and only if PixieDust() has produced some. On the remaining 99.8% where PixieDust() didn't block, this will do almost nothing, as desired.

这东西不能乱用的啊...

不学无术中..

eMule ID:[eDtoon][CHN]adamhj@eMule-Official
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只看该作者 16楼 发表于: 2006-08-09
...但是真的很能杀..一片凄惨..

羊骑车…[/KH]
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只看该作者 17楼 发表于: 2006-08-09
贴图..其实偶不是太会[/KH]..每次贴都显示不出来..

真的没有鬼影啦~~

羊骑车…[/KH]
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只看该作者 18楼 发表于: 2006-08-09
" If your source is encoded interlaced, set iPP=true",看来适合处理DV之类的

青空が眩しい 君がいる風景は
幸せのオーラ 溢れ出すの とまらないよ
駅前の噴水 虹を作っているよ
君を待つ時間さえも かけがえない プレシャスな時

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