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  • Joke21

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    válasz blakey #35163 üzenetére

    Én úgy tudom, hogy a bluray filmeknél 4:2:0 -van, a 4:4:4 -nek nincs előnye:

    "Now, its importance with smaller text is undeniable, but what about movies? 4:2:0 subsampling has been an industry standard for a long time now, and it isn't without reason. The benefits of having full color in video are debatable, especially at 4k. It would be tough to recognize the difference between a full 4:4:4 sequence and the same content in 4:2:0.

    4:2:0 is almost lossless visually, which is why it can be found used in Blu-ray discs and a lot of modern video cameras. There is virtually no advantage to using 4:4:4 for consuming video content. If anything, it would raise the costs of distribution by far more than its comparative visual impact. This becomes especially true as we move towards 4k and beyond. The higher the resolution and pixel density of future displays, the less apparent subsampling artifacts become."

    Forrás

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