bloc97/Anime4K ? reverse-engineered prompt

Build me a real time anime upscaling and denoising project like Anime4K.

I want the main result to be a set of shaders and related code that can make 1080p anime look sharper and cleaner on a 4K screen while staying fast enough to use during playback. It should work for anime line art, reduce blur and noise, and help with common compression artifacts without making the image look overprocessed.

Please include clear instructions for how someone can use it in common media players on Windows, Linux, and Mac, and make the docs easy to follow. If there are a few different quality or speed options, that would be great too. Keep the implementation practical and focused on real time use, not offline video re encoding.

If you need to check current player or shader docs online, feel free to look them up first.