Installation Instructions for GLSL/MPV Version
Hotfix: Algorithm now performs downscaling before applying the x4 prescaler (rather than after). 720p scaled to x4 is bigger than 4K, which is unnecessary and slows the algorithm down.
Added a L version that contains a larger prescaler. It offers a significant improvement to image quality, especially to low resolution anime. (eg. 480p) It has 2741 parameters, which is still smaller than FSRCNNX 8. If your GPU can run FSRCNNX, it should be fine.
However, since the prescaler was trained using perceptual loss, some banding might occur on very old/blurry anime.
It is also slower. (+1ms compared to non-L version for 1080p -> 4K upscaling)
Use at your own discretion.