[HELP] What noise is that?

[zspeciman]

Where is the FilterView Mode located?   Looks like a great tool

[Selur]

"Filtering->Vapoursynth->Misc->Preview->Split Compare View->FilterView mode"

Personally, I rarely use 'difference', normally I use 'Compre view' without 'Split Compare View' or with 'FilterView mode' set to 'interleave' or 'splitYUV&interleaved'. To me, 'difference' is more a gimmick than anything really useful.

Cu Selur

[zspeciman]

Thanks, I think this will be useful for the artifacts removal, nice to visually see what spots are removed.  Something I'll experiment with.

I was wondering about what order you would go with for this case:
A Black & White video that is a bit shaky, needs to be stabilized (stab), some flickering (ReduceFlicker), needs some cleaning (killerspot) and then colorized (deolodify)
Does the order matter at all?

[Selur]

I would probably
0. deinterlace, deblock
1.stabiilze
2. crop
3. clean
4. deflicker
5. colorize
as a start, but depending in the source I might adjust it.
Order, like filter settings always matters.

Cu Selur

[Doom83]

Hi, from all that filter, what are for fix compression artifact (blockiness ecc...)? 
simply deblock? spatial denoiser (minideen, mclean ecc...)?

[Selur]

Different artifacts require different filters.
There is no general filter for general 'compression artifacts'.

Cu Selur

[Doom83]

Also here try some filter but I'm never convinced of the result..there are deblock? despot? dont know that kind of noise, it seems more kind of noise and look always like a mess...

[Selur]

That is just a video where whoever encoded it used a way too low bitrate and thus ended up with tons of macro blocking.
(also at least the sample doesn't seem interlaced but progressive)
Something like DeblockPP7 or DPIR_deblock does work as good as it can, assuming you use way higher than the default values.
But deblockers will only do what they are intended to do, they will smooth sharp edges.
If the blocking was only a few frames visible stuff like Despot, Spotless, RemoveDirt(MC) might also help, but in your case will not help.
Machine based denoisers like DPIR_denoise and SCUNet might help, since they at least sometimes 'add' details.
Your best hope is probably machine learning stuff like BasicVSR++that is meant for restoration,.. or something like CodeFormer.
https://imgsli.com/MzM3NjA4 https://imgsli.com/MzM3NjA5
In the future, there might be Sora&Co based stuff for video restoration (don't know of any project doing this).

Cu Selur