image upscaling

[testadilegno]

Dear all,
following impaktor's post on github, I tested a few free-ish image upscalers available online.
The results are generally average quality. However one specifically gave reasonable (imho) results, https://bigjpg.com/, probably because it is trained on non-photographic images. You can see two 4x upscaling samples of the test images here -> https://imgur.com/a/S9Q1zZW

[impaktor]

Cool. Looks quite nice, if you ask me.

Could be provided as a mod, if nothing else.
(Not sure if we want to merge images into the source tree, if they're slated for removal "soon").

The one I tried was this: https://deepai.org/machine-learning-model/torch-srgan

And for reference, the OP refers to my coment here:
SystemView Atlas Mode #5239

[impaktor]

https://ai.googleblog.com/2021/07/high- ... -using.htm