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EVS-EN ISO/CIE 11664-1:2019

Colorimetry - Part 1: CIE standard colorimetric observers (ISO/CIE 11664-1:2019)

General information

Valid from 01.08.2019
Base Documents
ISO/CIE 11664-1:2019; EN ISO/CIE 11664-1:2019
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.08.2019
Main
02.06.2011
Main
This document specifies colour-matching functions for use in colorimetry. Two sets of colour-matching functions are specified.
— Colour-matching functions for the CIE 1931 standard colorimetric observer.
This set of colour-matching functions is representative of the colour-matching properties of observers with normal colour vision for visual field sizes of angular subtense from about 1° to about 4°, for vision at photopic levels of adaptation.
— Colour-matching functions for the CIE 1964 standard colorimetric observer.
This set of colour-matching functions is representative of the colour-matching properties of observers with normal colour vision for visual field sizes of angular subtense greater than about 4°, for vision at sufficiently high photopic levels and with spectral power distributions such that no participation of the rod receptors of the retina is to be expected.

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