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一、色度计算简介人眼除了能辨别亮度差别外,还具有分辨彩色的能力。彩色光在人眼中由三种彩色灵敏度不同的接收器官来衡量。三个相对彩色灵敏度的最大值位于光谱的红色、绿色、蓝色区域。这三种基色以不同强度比例组合起来,就产生了彩色视觉。为了研究问题的方便,便于计算,1931年国际上采用了一种新的系统,称为标准基色量系统。一个彩色量可表示为:F=X(x)+Y(y)+Z(z)式中,(x)、(y)、(z)称为标准基色量。X、Y、Z称为标准三色系数。(x)(y)(z)实际上已不代表真正的颜色,只是三种作为计算单位的假想颜色。
First, the chroma calculation Brief introduction In addition to the human eye can distinguish the brightness difference, but also has the ability to distinguish color. Colored light is measured in the human eye by three receiving organs of different color sensitivities. The maximum of the three relative color sensitivities is in the red, green, and blue regions of the spectrum. The three primary colors are combined in different intensity ratios to produce color vision. In order to study the convenience of the problem, easy to calculate, in 1931 internationally adopted a new system, called the standard color system. A color quantity can be expressed as: F = X (x) + Y (y) + Z (z) where x, y and z are the standard basic color quantities. X, Y, Z is called the standard tri-color coefficient. (x) (y) (z) does not really represent the true color, but three hypothetical colors as a unit of measure.