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Old 27th March 2010, 00:18   #2  |  Link
OvejaNegra
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Join Date: Dec 2005
Location: Cuba
Posts: 254
After ALOT of battle agains grain VS Banding i can tell you this for sure:
You eat the grain, you ll get banding.
Some sources are encoded without dithering and have banding.
Some sources have no grain but are encoded with dithering to avoid banding (dithering in the end is noise like grain for you)

My actual choices (after MAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAANY teest with animes and grainy sources)

Opt A: Do a strong denoising using FFT3d or moderate denoising using vaguedenoiser or anything like that -> good compression (not too high bit rate needed, not too big file) -> banding -> enable deband filter on FFDSHOW duting playback and it works excellent.

Opt B: Calm the grain using some temporal grain compressor like TTEMPSMOTH (my favorite) or this:
http://forum.doom9.org/showthread.php?t=139766
or this:
http://forum.doom9.org/showthread.ph...rain+optimizer
that will give you a more stable grain
then -> encode using high bit rate (1800 kbps or more) using grain retention settings on X264 or qpel + MPEG matrix on XVID -> Bigger file -> no banding -> looks very nice to me (for anime i'm ok sometimes with the anime preset on x264, i don need the grain preset)


IF your source have banding -> subtle denoiser (there is ALWAYS some noise on DVDs) -> encode normally -> enable deband on ffdshow during playback.

Or

Encode using gradfun or THIS: GradFun2DBmod.v1.3.avsi (google) Your source will look grainy again but it wont have banding. Of course you need high bit rate for this.


But i can tell you this for sure >
DVD sources have grain or dithering (i cant speak for HD yet, ask other person) so Degrain or denoise + no banding is impossible.

Yes on the TV (a common TV) you can see the banding even if is an encode or the original DVD with banding.
When you are on your monitor maybe bacause a bigger luma range you can see the banding. If you have a flat display it will look worst.

It's up to you, keep the grain or remove it and leave the banding. If your DVD has banding, well use some of the solutions i tested.

Good luck


EDIT:
Read this:
http://forum.doom9.org/showthread.ph...rain+optimizer
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