YUV 4:4:4

YUV 4:4:4 is a specific encoding for digital representation of the YUV color space.

In YUV 4:4:4, each of the Y,U and V channels are expressed with 8 bits, and have therefore 256 (2⁸) possible levels. It is in this respect similar to RGB 24-bit, and uses the same amount of space (3 bytes per pixel).

YUV 4:4:4 is the highest-quality digital YUV standard available.

External link

http://www.fourcc.org/

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