Re:Adobe Photoshop's 'super resolution' made my jaw hit the ...
by noahatwi on Sunday March 14, 2021 @03:54PM
(#26458376)
Also Waifu2X (don't be put off by the name).
https://github.com/AaronFeng753/Waifu2x-Extension-GUI
It has several models for processing animation and photos.
If you want it even tediously automates the scaling of videos and GIFs by exporting each frame, upscaling, and joining back together.
https://github.com/n00mkrad/cupscale