Eliminating compression artifacts

[Santuzzu]

I got a heavily compressed 1080p video and can't get satisfying results. Since the video is from a private archive which is not mine, I decided to crop one safe part of it and attach it here. Any recommendation on how to handle this?

[Selur]

that part is basically useless, since there is nothing with details which allows to see whether the choosen denoising&co is to hard.
For example: "TemporalDegrain( blockWidth=512, blockHeight=512)" properly removes most of the artifacts, but surely is way to high for the whole image.

In general TemporalDegrain and other temporal denoise/-grain filters will probably help.

Cu Selur

[lollo]

At first, my choice will be TemporalDegrain too, but with aggressive setting it must be used carefully