ISO/CIE 11664-3:2019 比色法 第3部分：CIE三刺激值

标准编号：ISO/CIE 11664-3:2019

中文名称：比色法 第3部分：CIE三刺激值

英文名称：Colorimetry — Part 3: CIE tristimulus values

发布日期：2019-06

标准范围

本文件规定了提供光谱分布的颜色刺激的三刺激值的计算方法。这些颜色刺激可以由自发光光源或反射或透射物体产生。本文件要求在至少380 nm至780 nm的波长范围内，以5 nm或更小的测量间隔将颜色刺激函数制成表格。对于测量波长范围小于380 nm至780 nm的情况，建议使用外推方法。标准方法定义为在360 nm至830 nm的波长范围内以1 nm的间隔求和。对于较大的间隔（高达5 nm）和较短的范围（低至380 nm至780 nm），定义了替代的简化方法。只有在适当的情况下，以及当用户已经审查了对最终结果的影响时，才可使用替代方法。本文件可与CIE 1931标准色度观察仪或CIE 1964标准色度观察仪一起使用。

This document specifies methods of calculating the tristimulus values of colour stimuli for which the spectral distributions are provided. These colour stimuli can be produced by self-luminous light sources or by reflecting or transmitting objects.This document requires that the colour stimulus function be tabulated at measurement intervals of 5 nm or less in a wavelength range of at least 380 nm to 780 nm. Extrapolation methods are suggested for cases where the measured wavelength range is less than 380 nm to 780 nm.The standard method is defined as summation at 1 nm intervals over the wavelength range from 360 nm to 830 nm. Alternative abridged methods are defined for larger intervals (up to 5 nm) and shorter ranges (down to 380 nm to 780 nm). The alternative methods are to be used only when appropriate and when the user has reviewed the impact on the final results.This document can be used in conjunction with the CIE 1931 standard colorimetric observer or the CIE 1964 standard colorimetric observer.

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