IEC 61966-9:2003

INTERNATIONAL IEC
STANDARD
61966-9
Second edition
2003-11
Multimedia systems and equipment –
Colour measurement and management –
Part 9:
Digital cameras
Systèmes et appareils multimédia –
Mesure et gestion de la couleur –
Partie 9:
Appareils numériques de prise de vue
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INTERNATIONAL IEC
STANDARD
61966-9
Second edition
2003-11
Multimedia systems and equipment –
Colour measurement and management –
Part 9:
Digital cameras
Systèmes et appareils multimédia –
Mesure et gestion de la couleur –
Partie 9:
Appareils numériques de prise de vue
 IEC 2003  Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
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International Electrotechnical Commission
Международная Электротехническая Комиссия
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– 2 – 61966-9  IEC:2003(E)
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Terms and definitions. 7
4 Conditions. 7
4.1 Environmental conditions . 7
4.2 Conditions of measurements. 7
5 Measurement equipment . 9
5.1 Spectral light source . 9
5.2 Colour temperature conversion filter. 9
5.3 Dark box. 9
5.4 Test charts .11
5.5 Radiance meter .13
5.6 Spectro-radiometer .14
5.7 Luminance meter .14
6 Tone characteristics.14
6.1 Characteristics to be measured.14
6.2 Measurement conditions .14
6.3 Method of measurement .15
6.4 Presentation of results .15
7 Spectral responsivity characteristics.17
7.1 Characteristics to be measured.17
7.2 Measurement conditions .17
7.3 Method of measurement .17
7.4 Presentation of results .18
8 Spectral distribution of built-in electronic flash .19
8.1 Characteristics to be measured.19
8.2 Measurement conditions .19
8.3 Method of measurement .19
8.4 Presentation of results .20
9 Spatial non-uniformity .20
9.1 Characteristics to be measured.20
9.2 Measurement conditions .20
9.3 Method of measurement .20
9.4 Presentation of results .21
Annex A (normative) Letters and symbols .23
Annex B (informative) Procedure to calculate the inverse function.24
Annex C (informative) Example of the use of the reported results for colour management .25
Annex D (normative) Method to compensate spectral responsivity characteristics at the
neutral point .28
Annex E (informative) Automated extraction of data from the test chart image.29
Bibliography .31

61966-9  IEC:2003(E) – 3 –
Figure 1 – Equipment arrangement for measurements . 8
Figure 2 – Dark box.10
Figure 3 – Test chart 1 .11
Figure 4 – Test chart 2 with replaceable chip i .12
Figure 5 – Test chart 3 .12
Figure 6 – Example plot of tone characteristics (correlated colour temperature: 5 500 K).16
Figure 7 – Example of spectral responsivity characteristics (correlated colour
temperature: 5 500 K).19
Figure 8 – Example of the spectral distribution characteristics of a built-in electronic
flash.20
Figure 9 – Equipment arrangement for measurement of spatial non-uniformity .21
Figure C.1 – An example of spectral responsivity controlled to approximate the ideal
scRGB characteristics superimposed as the broken curves.27
Figure E.1 – Example to compare a typical optical viewfinder area and the
corresponding image sensible area (outer rectangle) .29
Figure E.2 – Test chart with extended orientation markers .29
Table 1 – Nominal reflectances of the grey-scale section and the grey chips .13
Table 2 – Example of tone characteristics (correlated colour temperature: 5 500 K) .16
Table 3 – An example of reporting form for spatial non-uniformity .22

– 4 – 61966-9  IEC:2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTIMEDIA SYSTEMS AND EQUIPMENT –
COLOUR MEASUREMENT AND MANAGEMENT –
Part 9: Digital cameras
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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agreement between the two organizations.
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
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6) All users should ensure that they have the latest edition of this publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61966-9 has been prepared by IEC technical committee 100: Audio,
video and multimedia systems and equipment.
This second edition cancels and replaces the first edition published in 2000. This edition
includes the following significant technical changes from the previous edition.
a) In the light of issuing IEC 61966-2-2, the relevant reference IEC 61966-2-1 in Annex C has
been replaced by IEC 61966-2-2 together with sRGB by scRGB.
b) The previous Annex C has been replaced by the new Annex C where the previous Figure
C.1 has been deleted.
61966-9  IEC:2003(E) – 5 –
The text of this standard was submitted to the national committees for voting under the Fast
Track Procedure as the following documents:
CDV Report on voting
100/666/CDV 100/722/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 61966 consists of the following parts, under the general title Multimedia systems and
equi
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