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covers the specifics of color histograms.
Color histograms are three separate histograms, one each for the R, G and B channels.
They help determine correct exposure in an instant.
Single histograms, popular in many cameras, are misleading and worse than useless for
color photography. This is because single histograms can indicate correct exposure while
colored areas can be hideously overexposed!
WHY YOU NEED COLOR (YRGB or RGB) HISTOGRAMS
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