Quote:
Originally Posted by sumawo13
I mean I understand we're less sensitive to color and all, but I can clearly see pixelation in some videos on YouTube, especially in bright reds.
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That's probably bitrate starvation, or possibly poor decoding.
Chroma-subsampling makes the chroma a little soft - not blocky or pixelated (if decoded correctly).
Many encoders trash the chroma channels as they run out of bitrate, giving a blocky look on chroma edges. This isn't caused by 4:2:0 chroma, and could still happen with low bitrate 4:4:4 chroma.
Cheers,
David.