Upscayl (New Image Upscaler)

[Arnox]

https://github.com/TGS963/upscayl

Not sure how this stacks up to competing solutions but here it is regardless.

[AVLinux]

https://github.com/TGS963/upscayl

Not sure how this stacks up to competing solutions but here it is regardless.

Nice!

I've been using Topaz Labs products on Windows for this (both Pics and Video) nice to see a Linux solution come along, will have to try, thanks for sharing!

[Earl57]

Very cool! I downloaded the appimage and it works great! Running MX-21 KDE.

[Stevo]

It looks like it uses npm, which I have no idea of how to package from scratch.

[wdscharff]

Great, nothing worked for me at all.
Apart from the fact that I couldn't find any settings for what size/ratio I wanted to scale to.
Started, loaded one of my wallpapers, selected output folder and then watched nothing happen for 3 minutes.
Where "nothing" is not true, processor load between 4-6%, ram usage between 900mb to 1.3gb (LXTask). That on multicore/thread processors the scaling is suboptimal, was to be seen nevertheless.
So something was doing it, just was nothing to see.

I still use, under Wine, an OLD version of Photozoom for more demanding enlargements, either from 2006 or 2007, no idea when I bought it.
And, even if it hurts now, with it I have nailed everything to the wall that there was free/shareware until 2014/15 under Windows and also everything that there is until today under Linux for this area.
Even if I still have to have an MX19 with a 4 Wine version installed, which is not a real problem for me now with a total of 5TB SSD and >12TB HDD.

I would have liked to try it, but it does not run on my system.