1、 Reference numberISO 11664-3:2012(E)CIE S 014-3/E:2011ISO 2012INTERNATIONAL STANDARD ISO11664-3CIE S 014-3/EFirst edition2012-04-15Colorimetry Part 3: CIE tristimulus values Colorimtrie Partie 3: Composantes trichromatiques CIE Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence o
2、nly, copying and networking prohibitedISO 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, with
3、out permission in writing from either ISO at the address below or ISOs 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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2012 All rig
4、hts reservedLicensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:2012(E) ISO 2012 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
5、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, govern
6、mental 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 Il
7、lumination, 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
8、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: Vis
9、ion 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 chrom
10、aticity scale diagram Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedLicensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:2012(E) CIE S 014-3/E:2011 CIE 2011 All rights
11、 reserved ISO 2012 All rights reserved vStandard Colorimetry - Part 3: CIE Tristimulus Values Colorimtrie - 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 ag
12、reement 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 S 014-3/E:2011 Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence
13、only, copying and networking prohibitedISO 11664-3:2012(E) CIE S 014-3/E:2011 vi CIE 2011 All rights reserved ISO 2012 All rights reserved 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 me
14、chanical, 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.: +43 1 714 3187 0 Fax: +43 1 714 3187 18 e-mail: ciecbcie.co.at www.cie.co.at Licensed to: Paul Martina Ms.Downloade
15、d: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:2012(E) CIE S 014-3/E:2011 CIE 2011 All rights reserved ISO 2012 All rights reserved viiForeword Standards produced by the Commission Internationale de lEclairage are concise documents on aspects of light and lightin
16、g 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 Commissio
17、n Internationale de lEclairage 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 a
18、nd 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. H
19、irschler (HU), B. Jordan (CA), C. Kim (KR), D. McDowell (US), P. McGinley (AU), Y. Ohno (US), M.R. Pointer (GB), K. Richter (DE), G. Rsler (DE), J.D. Schanda (HU), R. Sve (FR), K. Witt (DE), H. Yaguchi (JP), J. Zwinkels (CA). Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence onl
20、y, copying and networking prohibitedISO 11664-3:2012(E) CIE S 014-3/E:2011 viii CIE 2011 All rights reserved ISO 2012 All rights reservedCONTENTS Foreword Introduction 1 1 Scope 1 2 Normative References 1 3 Definitions, Symbols and Abbreviations 1 4 Standard Method 3 4.1 Calculation of Tristimulus V
21、alues . 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
22、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 Bibliogra
23、phy . 9 viiLicensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:2012(E) CIE S 014-3/E:2011 CIE 2011 All rights reserved ISO 2012 All rights reserved 1Colorimetry - Part 3: CIE Tristimulus Values Introduction Colour stimuli with dif
24、ferent 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 valu
25、es 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 st
26、imuli 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 o
27、f 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 la
28、rger 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
29、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
30、) 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 Illuminant
31、s. 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
32、 the following symbols and abbreviations apply. k, k10 normalizing constants Km maximum spectral luminous efficacy of radiation in the CIE standard system of physical photometry Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:
33、2012(E) CIE S 014-3/E:2011 2 CIE 2011 All rights reserved ISO 2012 All rights reservedKm,10 maximum spectral luminous efficacy of radiation when the V10() function is used for photometry R() spectral reflectance factor S() relative spectral distribution of an illuminant V() spectral luminous efficie
34、ncy function in the CIE standard system of physical photometry V10() spectral luminous efficiency function when the )(10y function is used for photometry Wx(), Wy(), Wz() pre-calculated weighting functions for tristimulus integration using the CIE 1931 standard colorimetric observer Wx,10(), Wy,10()
35、, Wz,10() pre-calculated weighting functions for tristimulus integration using the CIE 1964 standard colorimetric observer x, y, z chromaticity coordinates calculated using the CIE 1931 standard colorimetric observer x10, y10, z10 chromaticity coordinates calculated using the CIE 1964 standard color
36、imetric observer ( ), ( ), ( )x y z colour-matching functions of the CIE 1931 standard colorimetric observer (also known as the CIE 2 standard colorimetric observer) 1 0 1 0 1 0( ), ( ), ( )x y z colour-matching functions of the CIE 1964 standard colorimetric observer (also known as the CIE 10 stand
37、ard colorimetric observer) X, Y, Z tristimulus values calculated using the CIE 1931 standard colorimetric observer X10, Y10, Z10 tristimulus values calculated using the CIE 1964 standard colorimetric observer () spectral radiance factor wavelength interval () colour stimulus function (description of
38、 a colour stimulus by the spectral concentration of a radiometric quantity, such as radiance or radiant power, as a function of wavelength) () relative colour stimulus function (relative spectral distribution of the colour stimulus function) wavelength () spectral reflectance () spectral transmittan
39、ce Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:2012(E) CIE S 014-3/E:2011 CIE 2011 All rights reserved ISO 2012 All rights reserved 34 Standard Method The Standard may be used in conjunction with the CIE 1931 standard colo
40、rimetric 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 s
41、tandard 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
42、 360 nm to 830 nm according to the equations: X k xY k yZ k z ddd( ) ( )( ) ( )( ) ( )(1) where () is the colour stimulus function to be evaluated; xyz ( ), ( ), ( ) are the colour-matching functions of the CIE 1931 standard colorimetric observer; and k is a normalizing constant defined below. The s
43、tandard method for evaluating these integrals is numerical summation from 360 nm to 830 nm at wavelength intervals, , equal to 1 nm according to the equations: X k xY k yZ k z ( ) ( )( ) ( )( ) ( )(2) using colour-matching functions ( ), ( ), ( )x y z defined with 7 significant figures in ISO 11664-
44、1:2007(E)/CIE S 014-1/E:2006 and a colour stimulus function, (), measured using a symmetrical triangular or trapezoidal bandpass with a halfwidth equal to 1 nm. Tristimulus values are often evaluated on a relative basis. In such cases the relative colour stimulus function, (), may be used instead of
45、 the colour stimulus function, (). It is essential that, for stimuli that will be considered together, all the spectral distributions involved be assessed on the same relative basis. The tristimulus values obtained are then relative in the sense that all the values involved may be multiplied by the
46、same single arbitrary constant, k. In certain cases, however, k shall be chosen according to agreed conventions; these conventions are explained in 4.2 and 4.3. NOTE The wavelength range of 360 nm to 830 nm is in accordance with established CIE practice (ISO 11664-1:2007(E)/CIE S 014-1/E:2006 and CI
47、E, 2004). Clause 5 of this Standard specifies abridged methods that may be used when data are not available over the full range of 360 nm to 830 nm at 1 nm intervals. Licensed to: Paul Martina Ms.Downloaded: 2012-10-16Single user licence only, copying and networking prohibitedISO 11664-3:2012(E) CIE
48、 S 014-3/E:2011 4 CIE 2011 All rights reserved ISO 2012 All rights reserved4.2 Normalizing Constant for Self-Luminous Light Sources For self-luminous objects, the normalizing constant, k, is usually chosen on the grounds of convenience. If, however, in the CIE 1931 standard colorimetric system, the
49、Y value is required to be numerically equal to the absolute value of a photopic photometric quantity, () shall be the spectral concentration of the radiometric quantity corresponding to the photometric quantity required, and the constant, k, shall be set equal to 683 lmW-1 which is the numerical value of Km, the maximum spectral luminous efficacy in the CIE Syste
