Here are links to his fork, his tool Arcada Accordion (which aids in upscaling priority layers and then flattening them), his fork of SCI Companion (named SCI Companion-X) which allows mass-exporting game assets one cel at a time (for Views) and one priority layer at a time (for Pictures) for upscaling. It also exports Fonts on character at a time. Anyway, here are the links:
ScummVMx (instructions for replacement assets included in a readme txt file)
SCI Companion X
Arcada Accordion
Video Tutorial:
Part 1
Part 2
Part 3
Myles Johnston's YT channel (with a few video examples of ScummVMx in action with replacement assets)
Enjoy! Great things are on the horizon!
ORIGINAL POST:
Some might be familiar with this already (Laserschwert?), but I'm just discovering it and boooooy is it fantastic. These are the results of upscaling and nothing more with ESRGAN using a Manga109 dataset-trained model. There are all kinds of models you can use, but this one was the most impressive. It renders 320x200 images beautifully as 4x 1280x800(/960) and almost looks like it could be the original art. In my opinion it, for the most part, puts the Special Editions and Remasters (especially Full Throttle) to shame. It's not perfect but some screens look phenomenal and almost flawless. Check these out:


LucasArts' Special Edition version:



LucasArts' Special Edition version:

Peter Chan's original artwork:



Double Fine's Remastered version:

Grim Fandango:


Here's some Sierra backgrounds (click for larger images):






These three were hi-res scans of the original artwork taken from the KQ6 CD-ROM bonus files and were originally 512x356, rendered up to 2048x1460!:



Here's tons more Sierra images
Even more from Sierra, LucasArts, and other games
Thread I discovered this from - Has many examples people have made from Grim Fandango to Final Fantasy VII to Metroid Prime to Hexen....
It runs in Python. Here are some links to set it up yourself. It takes several seconds to generate an image with a high-end GPU, so real-time filtering in ScummVM or DOSBox is many years away I'm sure

Helpful links:
Getting Started
Further instructions + Manga109 Dataset Model
ESRGAN Github