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What Is Color Space and Why Is It Important?

What Is Color Space and Why Is It Important?

In Chapter 3 we talked about color space in general terms to differentiate between output quality of consumer and professional DV camcorders. And we identified the specs as 4:1:1 (consumer) and 4:2:2 (professional). This is where we explain what these numbers mean, and why they matter to you.

Analog signals coming out of the CCDs are separate lines of R, G, and B. To become DV, they need to be digitized in a process called sampling. Most digital camcorders take 8-bit color samples of the analog picture signal; some high-end cameras, including HD models, use 10-bit samples. The more bits your camcorder uses, the wider the range of colors it can capture. For instance, if a camera uses 8-bit color, it can capture 256 levels of gray (28) for each monochrome pixel. A 10-bit camera can reproduce 1,024 levels of gray, or 210, levels.


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