Improvement of this Video possible?

[JohnDoe]

https://anonfiles.com/file/5644d3877ba29ef94287ae2ea3e1e8b0

Is it somehow possible to fix this red/yellow/blue areas at the edges with some avisynth filters/plugins? I do not know how this is called. Is this rainbowing?

At the end I'll definitely change the size to 960x544 and re-encode it.

[wonkey_monkey]

That's chromatic aberration (https://en.wikipedia.org/wiki/Chromatic_aberration), and you can more-or-less eliminate it by separating the image into its red/green/blue components, and scaling up the blue channel slightly (about 100.7%) and scaling down the red (about 99.7%).

Not sure of the quickest way to do this off the top of my head. Someone else will probably post a solution before I get around to thinking about it.

Someone beat me to it: http://avisynth.nl/index.php/FixChromaticAberration (although this isn't particular efficient, if you care about such things)

Edit: while the above is quick way of fixing it, the aberration isn't constant throughout the image, so if you really want to fix it, it needs a more complicated remapping of pixels.

[JohnDoe]

I tried this one: http://avisynth.nl/index.php/Caf_source

Works like a charme with settings "caf(-8.0)".

Thanks for the hint!