ISO/CIE 11664-5:2024
(Main)Colorimetry — Part 5: CIE 1976 L*u*v* colour space and u', v' uniform chromaticity scale diagram
Colorimetry — Part 5: CIE 1976 L*u*v* colour space and u', v' uniform chromaticity scale diagram
This document specifies the method of calculating the coordinates of the CIE 1976 L*u*v* colour space including correlates of lightness, chroma, saturation and hue. It includes two methods for calculating Euclidean distances in this space to represent the relative perceived magnitude of colour differences. It also specifies the method of calculating the coordinates of the u′,v′ uniform chromaticity scale diagram. This document is applicable to tristimulus values calculated using the colour-matching functions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. This document is applicable 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 includes self-luminous displays, like computer, television and smart-phone displays, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized. This document, as a whole, 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. Only the u′,v′ uniform chromaticity scale diagram defined in 4.1 and the correlates of hue and saturation defined in 4.3 apply to such colour stimuli.
Colorimétrie — Partie 5: Espace chromatique L*u*v* et diagramme de chromaticité uniforme u’, v’ CIE 1976
Le présent document spécifie la méthode de calcul des coordonnées de l’espace chromatique CIE 1976 L*u*v*, et des corrélats de clarté, chroma, saturation et teinte. Elle comprend deux méthodes permettant de calculer les distances euclidiennes dans cet espace, pour représenter l’amplitude relative perçue des différences de couleurs. Elle spécifie également la méthode de calcul des coordonnées du diagramme de chromaticité uniforme u’,v’. Le présent document s’applique aux composantes trichromatiques calculées à l’aide des fonctions d’égalisation de couleur du système de référence colorimétrique CIE 1931 ou du système de référence colorimétrique CIE 1964. Le présent document est applicable dans la spécification de stimuli de couleurs perçus comme appartenant à un objet transparent, translucide ou réfléchissant, lorsqu’un espace tridimensionnel plus uniforme que l’espace des composantes trichromatiques est requis. Sont inclus certains écrans d’affichage lumineux par eux-mêmes, tels que les écrans d’ordinateur, de télévision et de téléphones portables, s’ils sont utilisés pour simuler des objets transparents, translucides ou réfléchissants et si les stimuli sont normalisés de manière appropriée. Le présent document, dans son ensemble, n’est pas applicable aux stimuli de couleurs perçus comme appartenant à une surface qui semble émettre de la lumière comme une source primaire de lumière ou réfléchir spéculairement une telle lumière. Seul le diagramme de chromaticité uniforme u′,v′ défini en 4.1 et les notions corrélatives de teinte et de saturation définies en 4.3 s’appliquent à de tels stimuli de couleurs.
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ISO/CIE 11664-5
Second edition
Colorimetry —
2024-06
Part 5:
CIE 1976 L*u*v* colour space and u',
v' uniform chromaticity scale diagram
Colorimétrie —
Partie 5: Espace chromatique L*u*v* et diagramme de
chromaticité uniforme u’, v’ CIE 1976
Reference number
ISO/CIE 11664-5:2024(en) © ISO/CIE 2024
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ISO/CIE 11664-5:2024(en)
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Published in Switzerland
© ISO/CIE 2024 – All rights reserved
ii
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ISO/CIE 11664-5:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions .1
3.2 Symbols and abbreviated terms .2
4 Calculation method . 2
4.1 Uniform chromaticity scale diagram (UCS diagram) .2
4.2 Uniform colour space .3
4.3 Correlates of lightness, saturation, chroma and hue .4
4.4 Colour differences .5
Annex A (informative) Reverse transformation . 7
Bibliography . 8
© ISO/CIE 2024 – All rights reserved
iii
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ISO/CIE 11664-5:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrot
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Norme
internationale
ISO/CIE 11664-5
Deuxième édition
Colorimétrie —
2024-06
Partie 5:
Espace chromatique L*u*v* et
diagramme de chromaticité
uniforme u’, v’ CIE 1976
Colorimetry —
Part 5: CIE 1976 L*u*v* colour space and u', v' uniform
chromaticity scale diagram
Numéro de référence
ISO/CIE 11664-5:2024(fr) © ISO/CIE 2024
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ISO/CIE 11664-5:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO/CIE 2024
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Publié en Suisse
© ISO/CIE 2024 – Tous droits réservés
ii
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ISO/CIE 11664-5:2024(fr)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes, définitions, symboles et termes abrégés . 1
3.1 Termes et définitions .1
3.2 Symboles et termes abrégés .2
4 Méthode de calcul . 2
4.1 Diagramme de chromaticité uniforme .2
4.2 Espace chromatique uniforme .3
4.3 Notions corrélatives de clarté, saturation, chroma et teinte.5
4.4 Différences de couleurs .5
Annexe A (informative) Transformation inverse . 7
Bibliographie . 8
© ISO/CIE 2024 – Tous droits réservés
iii
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ISO/CIE 11664-5:2024(fr)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes nationaux
de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est en général
confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude a le droit de faire
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gouvernementales, en liaison avec l’ISO participent également aux travaux. L’ISO collabore étroitement avec
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FINAL DRAFT
International
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ISO/CIE
FDIS
11664-5
CIE
Colorimetry —
Secretariat: CIE
Part 5:
Voting begins on:
2024-03-01
CIE 1976 L*u*v* colour space and
u', v' uniform chromaticity scale
Voting terminates on:
2024-04-26
diagram
Colorimétrie —
Partie 5: Diagramme de chromaticité uniforme u',v' et espace
chromatique CIE 1976 L*u*v*
Member bodies are requested to consult relevant national interests in ISO/TC
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Reference number
ISO/CIE FDIS 116645:2024(en) © ISO/CIE 2024
---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/CIE FDIS 11664-5:2024(en)
International
Standard
ISO/CIE
FDIS
11664-5
CIE
Colorimetry —
Secretariat: CIE
Part 5:
Voting begins on:
CIE 1976 L*u*v* colour space and
u', v' uniform chromaticity scale
Voting terminates on:
diagram
Colorimétrie —
Partie 5: Diagramme de chromaticité uniforme u',v' et espace
chromatique CIE 1976 L*u*v*
Member bodies are requested to consult relevant national interests in ISO/TC
274 before casting their ballot to the e-Balloting application.
COPYRIGHT PROTECTED DOCUMENT
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
© ISO/CIE 2024
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
IN ADDITION TO THEIR EVALUATION AS
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
or ISO’s member body in the country of the requester
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
ISO copyright office CIE Central Bureau TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
CP 401 • Ch. de Blandonnet 8 Babenbergerstraße 9/9A • A-1010 Vienna
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11 Phone: +43 1 714 3187
Fax: +41 22 749 09 47
Email: copyright@iso.org Email: ciecb@cie.co.at
Website: www.iso.org Website: www.cie.co.at
Published in Switzerland Reference number
ISO/CIE FDIS 116645:2024(en) © ISO/CIE 2024
© ISO/CIE 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/CIE FDIS 11664-5:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions .1
3.2 Symbols and abbreviated terms .2
4 Calculation method . 2
4.1 Uniform chromaticity scale diagram (UCS diagram) .
...
2024-01-012
ISO/CIE FDIS 11664-5:2024(E)
CIE
Secretariat: CIE
Date: 2024-02-16
Colorimetry —
Part 5:
CIE 1976 L*u*v* Colourcolour space and u', v' uniform chromaticity
scale diagram
Colorimétrie —
Partie 5: Espace chromatique L*u*v* et diagrammeDiagramme de chromaticité
uniforme u', v' et espace chromatique CIE 1976 L*u*v*
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FDIS stage
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© ISO/CIE 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO'sISO’s member body in the country of the requester.
ISO Copyright Office copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: copyright@iso.org
E-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland.
---------------------- Page: 3 ----------------------
ISO/CIE FDIS 11664-5:2024(Een)
Contents
Foreword v
Introduction vii
1 Scope 1
2 Normative references 1
3 Terms, definitions, symbols and abbreviated terms 1
3.1 Terms and definitions 1
3.2 Symbols and abbreviated terms 2
4 Calculation method 2
4.1 Uniform chromaticity scale diagram (UCS diagram) 2
4.2 Uniform colour space 3
4.3 Correlates of lightness, saturation, chroma and hue 5
4.4 Colour differences 5
Annex A (informative) Reverse transformation 8
Bibliography 9
Foreword . v
Introduction .vi i
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Symbols and abbreviated terms . 2
4 Calculation method . 2
4.1 Uniform chromaticity scale diagram (UCS diagram) . 2
4.2 Uniform colour space . 3
4.3 Correlates of lightness, saturation, chroma and hue . 5
4.4 Colour differences . 5
Annex A (informative) Reverse transformation . 8
Bibliography . 9
iv © ISO/CIE 2024 -– All rights reserved
iv
---------------------- Page: 4 ----------------------
ISO/CIE FDIS 11664-5:2024(Een)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborat
...
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