SIST EN ISO 11664-3:2013

Colorimetry - Part 3: CIE tristimulus values (ISO 11664-3:2012)

This CIE Standard specifies methods of calculating the tristimulus values of colour stimuli for which the spectral distributions are provided. These colour stimuli may be produced by self- luminous light sources or by reflecting or transmitting objects. The Standard 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. The Standard may be used in conjunction with the CIE 1931 standard colorimetric observer or the CIE 1964 standard colorimetric observer.

Farbmetrik - Teil 3: CIE-Farbwerte (ISO 11664-3:2012)

Diese CIE-Norm legt Verfahren zur Berechnung von Farbwerten aus Farbreizen, für die die Spektralverteilungen gegeben sind, fest. Diese Farbreize können von selbstleuchtenden Lichtquellen oder durch reflektierende oder transmittierende Objekte erzeugt werden.
Die Norm erfordert, dass die Farbreizfunktion in Messintervallen von 5 nm oder weniger in einem Wellenlängenbereich von mindestens 380 nm bis 780 nm tabelliert wird. Für Fälle, bei denen der gemessene Wellenlängenbereich kleiner als 380 nm bis 780 nm ist, werden Extrapolationsverfahren vorgeschlagen.
Das Normverfahren wird als Summierung bei Intervallen von 1 nm über den Wellenlängenbereich von 360 nm bis 830 nm definiert. Für größere Intervalle (bis zu 5 nm) und kleinere Bereiche (bis auf 380 nm bis 780 nm) werden Kurzverfahren definiert. Die alternativen Verfahren sind nur dann anzuwenden, wenn sie geeignet sind und der Anwender die Auswirkung auf die Endergebnisse überprüft hat.
Die Norm darf zusammen mit dem farbmetrischen Normalbeobachter CIE 1931 oder dem farbmetrischen Normalbeobachter CIE 1964 angewendet werden.

Colorimétrie - Partie 3: Composantes trichromatiques CIE (ISO 11664-3:2012)

L'ISO 11664-3:2012 spécifie les méthodes de calcul des composantes trichromatiques des stimuli de couleur dont les répartitions spectrales sont disponibles. Ces stimuli de couleur peuvent être produits par des sources primaires de lumière ou par des objets qui réfléchissent ou qui transmettent la lumière.

Kolorimetrija - 3. del: Barvne vrednosti CIE (ISO 11664-3:2012)

Ta standard CIE določa metode za izračun barvnih vrednosti barvnih dražljajev, za katere je podana spektralna porazdelitev. Te barvne dražljaje lahko povzročijo samosvetilni svetlobni viri ali odbojni predmeti ali oddajniki. Standard zahteva, da se funkcija barvnih dražljajev tabelira v intervalih merjenja največ 5 nm v razponu valovnih dolžin od najmanj 380 nm do 780 nm. Metode ekstrapoliranja so priporočene v primerih, kjer so merjeni razponi valovnih dolžin manjši od 380 nm do 780 nm. Standardna metoda je določena kot vsota intervalov 1 nm v razponu valovnih dolžin od 360 nm do 830 nm. Alternativne skrajšane metode so določene za večje intervale (več kot 5 nm) in za krajše razpone valovnih dolžin (krajše od 380 nm do 780 nm). Alternativne metode se uporabljajo samo, kadar je ustrezno in kadar je uporabnik pregledal vpliv na končne rezultate. Standard se lahko uporablja v povezavi z normalnim opazovanjem kolorimetrije po CIE 1931 ali z normalnim opazovanjem kolorimetrije po CIE 1964.

General Information

• Status: Withdrawn
• Publication Date: 28-May-2013
• Withdrawal Date: 06-Aug-2019
• ICS: 17.180.20 - Colours and measurement of light
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 24-Jul-2019
• Due Date: 16-Aug-2019
• Completion Date: 07-Aug-2019
• Ref Project: EN ISO 11664-3:2013 - Colorimetry - Part 3: CIE tristimulus values (ISO 11664-3:2012)

Relations

• Replaced By: SIST EN ISO/CIE 11664-3:2019 - Colorimetry - Part 3: CIE tristimulus values (ISO/CIE 11664-3:2019)
• Effective Date: 01-Sep-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11664-3:2013
01-julij-2013
Kolorimetrija - 3. del: Barvne vrednosti CIE (ISO 11664-3:2012)
Colorimetry - Part 3: CIE tristimulus values (ISO 11664-3:2012)
Farbmetrik - Teil 3: CIE-Farbwerte (ISO 11664-3:2012)
Colorimétrie - Partie 3: Composantes trichromatiques CIE (ISO 11664-3:2012)
Ta slovenski standard je istoveten z: EN ISO 11664-3:2013
ICS:
17.180.20 Barve in merjenje svetlobe Colours and measurement of
light
SIST EN ISO 11664-3:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11664-3:2013


EUROPEAN STANDARD
EN ISO 11664-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2013
ICS 17.180.20
English Version
Colorimetry - Part 3: CIE tristimulus values (ISO 11664-3:2012)
Colorimétrie - Partie 3: Composantes trichromatiques CIE Farbmetrik - Teil 3: CIE-Farbwerte (ISO 11664-3:2012)
(ISO 11664-3:2012)
This European Standard was approved by CEN on 16 May 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11664-3:2013: E
worldwide for CEN national Members.

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SIST EN ISO 11664-3:2013
EN ISO 11664-3:2013 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 11664-3:2013
EN ISO 11664-3:2013 (E)
Foreword
The text of ISO 11664-3:2012 has been prepared by “CIE International Commission on Illumination” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 11664-3:2013 by
Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by November 2013, and conflicting national standards shall be withdrawn
at the latest by November 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11664-3:2012 has been approved by CEN as EN ISO 11664-3:2013 without any modification.

3

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SIST EN ISO 11664-3:2013

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SIST EN ISO 11664-3:2013

INTERNATIONAL ISO
STANDARD 11664-3
CIE S 014-3/E
First edition
2012-04-15

Colorimetry —
Part 3:
CIE tristimulus values
Colorimétrie —
Partie 3: Composantes trichromatiques CIE




Reference number
ISO 11664-3:2012(E)
CIE S 014-3/E:2011
©
ISO 2012

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2012 – All rights reserved

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
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 Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
ISO 11664-3 was prepared as Standard CIE S 014-3/E by the International Commission on Illumination, which
has been recognized by the ISO Council as an international standardizing body. It was adopted by ISO under
a special procedure which requires approval by at least 75 % of the member bodies casting a vote, and is
published as a joint ISO/CIE edition.
The International Commission on Illumination (abbreviated as CIE from its French title) is an organization
devoted to international cooperation and exchange of information among its member countries on all matters
relating to the science and art of lighting.
ISO 11664-3 was prepared by CIE Technical Committee 1-57 of Division: Vision and colour.
ISO 11664 consists of the following parts, under the general title Colorimetry:
— Part 1: CIE standard colorimetric observers
— Part 2: CIE standard illuminants
— Part 3: CIE tristimulus values
— Part 4: CIE 1976 L*a*b* Colour space
— Part 5: CIE 1976 L*u*v* Colour space and u', v' uniform chromaticity scale diagram

© ISO 2012 – All rights reserved iii

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SIST EN ISO 11664-3:2013

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011
CIE S 014-3/E:2011
Standard














Colorimetry -
Part 3: CIE Tristimulus Values


Colorimétrie - Partie 3: Composantes trichromatiques CIE
Farbmessung - Teil 3: CIE-Farbwerte
















CIE Standards are copyrighted and shall not be reproduced in any form, entirely or partly,
without the explicit agreement of the CIE.








CIE Central Bureau, Vienna CIE S 014-3/E:2011
Kegelgasse 27, A-1030 Vienna, Austria
UDC: 535.65:006 Descriptor: Standardisation of colour measurement
535.643.2 Standard colorimetric systems
© CIE 2011 – All rights reserved
© ISO 2012 – All rights reserved v

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011



 CIE 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from CIE Central Bureau at the address below.
CIE Central Bureau
Kegelgasse 27
A-1030 Vienna
Austria
Tel.: [phone]
Fax: [phone]
e-mail: [e-mail]
www.cie.co.at
© CIE 2011 – All rights reserved
vi © ISO 2012 – All rights reserved

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011
Foreword
Standards produced by the Commission Internationale de l’Eclairage are concise documents
on aspects of light and lighting that require a unique definition. They are a primary source of
internationally accepted and agreed data which can be taken, essentially unaltered, into
universal standard systems.
This CIE Standard has been prepared by Technical Committee TC 1-57* of Division 1 "Vision
and Colour" of the Commission Internationale de l’Eclairage and approved by the National
Committees of the CIE.
The following ISO and IEC committees and working groups co-operated in the preparation of
this standard:

IEC TC100/TA2 (Audio, video and multimedia systems)
ISO TC6 (Paper, board and pulps)
ISO TC35/SC9/WG22 (Paints and varnishes)
ISO TC38/SC1/WG7 (Textiles)
ISO TC42 (Photography)
ISO TC130 (Graphic technology)
ISO/IEC/JTC1/SC28 (Office systems)


























* The chairperson of this TC was A.R. Robertson (CA), members were: P.J. Alessi (US), J.
Campos Acosta (ES), R. Connelly (US), J.-F. Decarreau (FR), R. Harold (US), R. Hirschler
(HU), B. Jordan (CA), C. Kim (KR), D. McDowell (US), P. McGinley (AU), Y. Ohno (US), M.R.
Pointer (GB), K. Richter (DE), G. Rösler (DE), J.D. Schanda (HU), R. Sève (FR), K. Witt (DE),
H. Yaguchi (JP), J. Zwinkels (CA).
© CIE 2011 – All rights reserved
© ISO 2012 – All rights reserved vii

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011




CONTENTS

Foreword . vii
Introduction . 1
1 Scope . 1
2 Normative References . 1
3 Definitions, Symbols and Abbreviations . 1
4 Standard Method . 3
4.1 Calculation of Tristimulus Values . 3
4.2 Normalizing Constant for Self-Luminous Light Sources . 4
4.3 Normalizing Constant for Reflecting or Transmitting Objects . 4
4.4 CIE 1964 Standard Colorimetric System . 4
5 Abridged Methods . 5
5.1 Abridged Method for 5 nm Data . 5
5.2 Abridged Method for 10 nm or 20 nm Data for Reflecting or Transmitting
Objects . 5
5.3 Abridged Method for 10 nm or 20 nm Data for Self-Luminous Light Sources . 6
6 Supplementary Treatment of Input Data . 6
6.1 Extrapolation . 6
6.2 Interpolation . 7
6.3 Bandwidth . 7
7 Chromaticity Coordinates . 7
8 Numerical Procedures . 8
9 Presentation of Results . 8
Bibliography . 9

© CIE 2011 – All rights reserved
viii © ISO 2012 – All rights reserved

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011
Colorimetry - Part 3: CIE Tristimulus Values
Introduction
Colour stimuli with different spectral distributions can look alike. An important function of
colorimetry is to determine which stimuli look alike to a given observer with a given set of
colour-matching functions. This is done by calculating a set of three tristimulus values for
each stimulus. Equality of tristimulus values indicates equality of colour appearance under
equal irradiation and viewing conditions. This Standard is based on long-standing CIE
recommendations (CIE, 2004) for the calculation of tristimulus values.
1 Scope
This CIE Standard specifies methods of calculating the tristimulus values of colour stimuli for
which the spectral distributions are provided. These colour stimuli may be produced by self-
luminous light sources or by reflecting or transmitting objects.
The Standard 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.
The Standard may be used in conjunction with the CIE 1931 standard colorimetric observer
or the CIE 1964 standard colorimetric observer.
2 Normative References
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
CIE DS 017.2/E:2009. ILV: International Lighting Vocabulary.
ISO 11664-1:2007(E)/CIE S 014-1/E:2006. Joint ISO/CIE Standard: Colorimetry Part 1. CIE
Standard Colorimetric Observers.
ISO 11664-2:2007(E)/CIE S 014-2/E:2006. Joint ISO/CIE Standard: Colorimetry Part 2. CIE
Standard Illuminants.
ISO 23539:2005(E)/CIE S 010/E:2004. Joint ISO/CIE Standard: Photometry - The CIE
System of Physical Photometry.
3 Definitions, Symbols and Abbreviations
For the purposes of this International Standard, the terms and definitions given in CIE DS
017.2/E:2009 (International Lighting Vocabulary), and the following symbols and
abbreviations apply.
k, k normalizing constants
10
K maximum spectral luminous efficacy of radiation in the
m
CIE standard system of physical photometry
© CIE 2011 – All rights reserved
© ISO 2012 – All rights reserved 1

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011
K maximum spectral luminous efficacy of radiation when the
m,10

V (λ) function is used for photometry
10
R(λ) spectral reflectance factor
S(λ) relative spectral distribution of an illuminant
V(λ) spectral luminous efficiency function in the CIE standard
system of physical photometry
V (λ) spectral luminous efficiency function when the y (λ)
10
10
function is used for photometry
W (λ), W (λ), W (λ) pre-calculated weighting functions for tristimulus
x y z
integration using the CIE 1931 standard colorimetric
observer
W (λ), W (λ), W (λ) pre-calculated weighting functions for tristimulus
x,10 y,10 z,10
integration using the CIE 1964 standard colorimetric
observer
x, y, z chromaticity coordinates calculated using the CIE 1931
standard colorimetric observer
x , y , z chromaticity coordinates calculated using the CIE 1964
10 10 10
standard colorimetric observer
x(), y(), z() colour-matching functions of the CIE 1931 standard
colorimetric observer (also known as the CIE 2° standard
colorimetric observer)
x (), y (), z () colour-matching functions of the CIE 1964 standard
10 10 10
colorimetric observer (also known as the CIE 10° standard
colorimetric observer)
X, Y, Z tristimulus values calculated using the CIE 1931 standard
colorimetric observer
X , Y , Z tristimulus values calculated using the CIE 1964 standard
10 10 10
colorimetric observer
β(λ) spectral radiance factor
 wavelength interval
φ (λ) colour stimulus function (description of a colour stimulus
λ
by the spectral concentration of a radiometric quantity,
such as radiance or radiant power, as a function of
wavelength)
φ(λ) relative colour stimulus function (relative spectral
distribution of the colour stimulus function)
λ wavelength
ρ(λ) spectral reflectance
τ(λ) spectral transmittance
© CIE 2011 – All rights reserved
2 © ISO 2012 – All rights reserved

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SIST EN ISO 11664-3:2013
ISO 11664-3:2012(E)
CIE S 014-3/E:2011
4 Standard Method
The Standard may be used in conjunction with the CIE 1931 standard colorimetric observer
or the CIE 1964 standard colorimetric observer. If the angle subtended at the eye by the
colour stimulus (or fields to be matched in colour) is between about 1° and 4° the CIE 1931
standard colorimetric observer shall be used. If this angular subtense is greater than 4° the
CIE 1964 standard colorimetric observer shall be used. The same colorimetric observer shall
be used for all stimuli to be compared with each other.
4.1 Calculation of Tristimulus Values
In the CIE 1931 standard colorimetric system, tristimulus values X, Y and Z are defined as
integrals over the spectral range 360 nm to
...