Quote:
Originally Posted by Sp00kyFox
played around with the new version and some settings. I don't really get the negative feedback for the biliteral chroma upscaling. I tried it with some real world movies and TV shows and it does a great job. using the luma information as a guidance seems to me is the best way to do it, so yeah.. it's a good chroma scaler in my eyes.
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Bilateral scaling can be really really good, but also runs into some exceptions that make it look like trash. Any time you have solid red shapes on solid black, Bilateral has zero luma information to draw on and gets ugly at all the edges (happens on logo/studio sequences before films, rare scenes from certain movies, anime) Furthermore, it sometimes "fills to edges" inappropriately, giving a dramatically different image (chroma bleed) from what ground truth is.
It's just not consistent enough to be left on for all video content. 80-90% of the time it's great, the other 10% it looks so bad I think something's corrupted or broken.