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The CIE 1931 xy
This color space is a mathematical representation of the human eye's response to color. Note that this color space is non-linear! It's a 3-D model that is "unfolded" like a Mecador projection map of the earth.
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Exact color reproduction is and has always been the goal that is difficult to achieve 。Many applications use the Intenational de l’Eclairage’s CIE XYZ color model (or color space) as a basis to prepare a color rendering before it is output to a device。The CIE XYZ color model provides a mathematical representation of all visible colors and is hardware-device-independent。However，even a device-independent color model does not work well in practice for following reasons:
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发表于 2006-12-8 14:46:59
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