Colorimetry CIE 1976 Lab* colour space

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Hardcopy , PDF

Language(s)

English

Published date

23-07-2019

Publisher

British Standards Institution

This document specifies a method of calculating the coordinates of the CIE 1976 L*a*b* colour space, including correlates of lightness, chroma and hue.

1 This document specifies a method of calculating the coordinates of the CIE1976 L*a*b* colour space, including correlates of lightness, chroma and hue. It includes two methods for calculating Euclidean distances in this space to represent the perceived magnitude of colour differences.This document is applicable to tristimulus values calculated using colour-matching functions of the CIE1931 standard colorimetric system or the CIE1964 standard colorimetric system. This document can be used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object, where a three-dimensional space more uniform than tristimulus space is required.This document does not apply to colour stimuli perceived as belonging to an area that appears to be emitting light as a primary light source, or that appears to be specularly reflecting such light.This document is applicable to self-luminous displays, such as cathode ray tubes, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized.Calculating the reverse transformation is shown in AnnexA.

Committee	EL/1
DocumentType	Standard
ISBN	9780539053470
Pages	16
ProductNote	THIS STANDARD ALSO REFERES TO : CIE S 017, CIE 142-2001, CIE 116-1995, CIE 15,ISO/CIE 11664-5
PublisherName	British Standards Institution
Status	Current
Supersedes	BS EN ISO 11664-4:2011

Standards	Relationship
EN ISO/CIE 11664-4:2019	Identical
ISO/CIE 11664-4:2019	Identical

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BS EN ISO/CIE 11664-4:2019

Colorimetry CIE 1976 L*a*b* colour space

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Colorimetry CIE 1976 Lab* colour space