In colorimetry, x and y each stands for what?
时间: 2024-05-27 19:09:31 浏览: 145
颜色的表示
In colorimetry, x and y are chromaticity coordinates that represent the color of a stimulus, independent of its luminance or brightness. The chromaticity coordinates x and y are derived from the tristimulus values X, Y, and Z, which are obtained by measuring the amount of light absorbed by a stimulus at three different wavelengths. The chromaticity coordinates x and y are calculated as:
x = X / (X + Y + Z)
y = Y / (X + Y + Z)
The chromaticity coordinates x and y are commonly used to define colors in color spaces such as CIE 1931 XYZ, CIE xyY, and CIE L*a*b*.
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