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Digital Video and HD, 2nd Edition by Charles Poynton

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YUV and luminance considered harmful

This is a plea for precise terminology. The notation YUV, and the term luminance, are widespread in digital video, computer graphics, and digital image processing. Actually, digital video almost never uses Y’UV colour difference components, and never directly represents the luminance of colour science. The common terms are almost always wrong. This note explains why. I urge video engineers and computer graphics specialists to use the correct terms, almost always Y’C B C R and luma.

Cement vs. concrete

I’ll demonstrate by analogy why it is important to use correct terms. Next time you’re waiting in line for a bus, ask the person next to you in line what building material is used to construct a sidewalk. ...

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