[SUGGESTION] FFMpeg's noise reduction

[MarcoRavich]

I recently encoded an old documentary thas has a "disturbing" grain, so I believe that would be great for encoder GUI to let users exploit denoise algorithms available in FFMpeg (as HandBrake already does):

• http://ffmpeg.org/ffmpeg-filters.html#nlmeans-1
• http://ffmpeg.org/ffmpeg-filters.html#atadenoise
• http://ffmpeg.org/ffmpeg-filters.html#hqdn3d-1
• http://ffmpeg.org/ffmpeg-filters.html#vaguedenoiser

Hope that inspires.

[MattMcManis]

I will work on adding this, thanks.

[MattMcManis]

Example commands of each noise filter:

-vf nlmeans=h=10:range=5:temporal=3

-vf atadenoise=s=7:p=7:0a=0:0b=0:1a=0:1b=0:2a=0:2b=0

-vf hqdn3d=0:0:8:8

-vf vaguedenoiser=2:2:6:85:15

For now I might have to do simple presets for each, Heavy, Medium, Light, as it will be difficult and take some time to add the parameter controls for each value, such as threshold, luma, chroma, planes.

[MarcoRavich]

Yes, almost all GUIs uses presets...

[MattMcManis]

I've added the noise filters nlmeans, hqdn3d, vaguedenoiser, removegrain with light, medium, strong presets.
Let me know how they work out.

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I did not add atadenoise yet, if you can find any good presets for light, medium, strong, post them.

I found the other presets here:
nlmeans https://forum.handbrake.fr/viewtopic.php?f=4&t=30135&p=139077 hqdn3d https://mattgadient.com/in-depth-look-at-de-noising-in-handbrake-with-imagevideo-examples/

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I also added the deblock filter with weak and strong.
https://ffmpeg.org/ffmpeg-filters.html#deblock

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Press the update arrow in Axiom or download new version here.

[MarcoRavich]

Someone suggested to implement accellerated nlmeans_opencl @ FastFlix, wich sounds a really good idea:

https://github.com/cdgriffith/FastFlix/issues/202

Hope that inspires !