Blu-ray Denoising

[Yumi-chan]

Hi, i'm trying to strip an encode off a BDMV iso. I wasn't expecting to find a grainy source ( since this is anime). So far, i've tried a bunch of denoise filters and grain removal, trying to tweak the setting to clean the grain, but after 5 hours i'm still unsuccesful.
Whenever i try to remove the grain, i get banding back to me. Now..i don't really know if this is a normal thing but..i'd like some other opinion on the matter before i go on and say "welp..fuck this..i'll stick with the grain" :D

setting used: degrainmedian() followed by a fluxsmooth(5, 5)

frame out of the source

http://hdimage.org/images/enzgxjgvio1n2eawjfo7_framesource_thumb.png (http://hdimage.org/viewer.php?file=enzgxjgvio1n2eawjfo7_framesource.png)


this is what i get after the encoding

http://hdimage.org/images/0y0894cxpqjhee3zx2ko_378047_thumb.png (http://hdimage.org/viewer.php?file=0y0894cxpqjhee3zx2ko_378047.png)

[setarip_old]

Hi!

Does your original BluRay disc exhibit the same noise or grain?

[Yumi-chan]

Hi!

Does your original BluRay disc exhibit the same noise or grain?

Yeah, grained.

[Adub]

I usually get good results using either FFT3DGPU, Dfttest, or TNLMeans. However, your source looks pretty good already. There isn't a large need for heavy filtering. You may try something like TTempsmooth for some pure temporal filtering. I find that this works great for anime as it reduces noise, and increases compressibility due to anime's common practice of reusing frames.

Oh, one that I forgot that might workout well for you is Donald Graft's MSmooth.

As for the banding, well, that's something you are going to have to live with if you insist on denoising. One option you can try is using a dithering filter such as gradfun2db or LaTo's adaptive GradFun2DBMod, which will adapt itself to your picture using both AddGrain and GradFun2db.

[Yumi-chan]

I usually get good results using either FFT3DGPU, Dfttest, or TNLMeans. However, your source looks pretty good already. There isn't a large need for heavy filtering. You may try something like TTempsmooth for some pure temporal filtering. I find that this works great for anime as it reduces noise, and increases compressibility due to anime's common practice of reusing frames.

Oh, one that I forgot that might workout well for you is Donald Graft's MSmooth.

As for the banding, well, that's something you are going to have to live with if you insist on denoising. One option you can try is using a dithering filter such as gradfun2db or LaTo's adaptive GradFun2DBMod, which will adapt itself to your picture using both AddGrain and GradFun2db.

thanks, i'll try that.

[onesloth]

MDegrain is a really good denoiser that doesn't create banding. Though it might reveal banding if it was present in the source but hidden by added noise.

[saint-francis]

What about MCTemporalDenoise? That will help you denoise well and help to keep the banding down.