分析比色法.第3部分:特殊指数

[中文适用范围]： 本文件规定了计算特殊指数的不同方法，这些方法通常用于描述样品的亮度或黑度，包括一个颜色坐标内的色度或色调。 本文件适用于使用 CIE 1931 (2°) 或 CIE 1964 (10°) 标准色度系统的配色函数计算的三刺激值和色品坐标。 它用于指定被感知为属于需要一维值的反射或透射物体的颜色刺激。 [外文原描述]： This document specifies different methods of calculating special indices, which are generally used to describe lightness respectively jetness of samples including chroma or hue within one colour-coordinate. This document is applicable to tristimulus values and chromaticity coordinates calculated using colour-matching functions of the standard colorimetric system of the CIE 1931 (2°) or CIE 1964 (10°). It is used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object where a one-dimensional value is required.