IEC 61966-9:2000

Multimedia systems and equipment - Colour measurement and management - Part 9: Digital cameras

Applies to the assessment of colour reproduction of digital cameras used in open computer systems and similar applications. Deals with digital cameras designed to capture colour still images and moving images for use in multimedia applications.

Systèmes et appareils multimédia - Mesure et gestion de la couleur - Partie 9: Appareils numériques de prise de vue

Est applicable à l'évaluation de la reproduction de la couleur des appareils numériques de prise de vue utilisés dans les systèmes informatiques ouverts et applications similaires. Traite des appareils numériques de prise de vue destinés à prendre des images fixes et des images animées en couleur utilisées dans les applications multimédia.

General Information

• Status: Published
• Publication Date: 15-Jun-2000
• ICS: 33.160.60 - Multimedia systems and teleconferencing equipment
• ICS: 35.040 - Information coding
• ICS: 37.040.01 - Photography in general
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 20-Nov-2003

Relations

• Revised: IEC 61966-9:2003 - Multimedia systems and equipment - Colour measurement and management - Part 9: Digital cameras
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61966-9
First edition
2000-06
Multimedia systems and equipment –
Colour measurement and management –
Part 9:
Digital cameras
Systèmes et appareils multimedia –
Mesure et gestion de la couleur –
Partie 9:
Appareils numériques de prise de vue

Reference number
Numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series.
Consolidated publications
Consolidated versions of some IEC publications including amendments are

available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the
base publication, the base publication incorporating amendment 1 and the base

publication incorporating amendments 1 and 2.

Validity of this publication
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology.
Information relating to the date of the reconfirmation of the publication is available
in the IEC catalogue.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is to be found at the following IEC sources:
• IEC web site*
•
Catalogue of IEC publications
Published yearly with regular updates
(On-line catalogue)*
• IEC Bulletin
Available both at the IEC web site* and as a printed periodical
Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International
Electrotechnical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols
for diagrams.
* See web site address on title page.

INTERNATIONAL IEC
STANDARD
61966-9
First edition
2000-06
Multimedia systems and equipment –
Colour measurement and management –
Part 9:
Digital cameras
Systèmes et appareils multimedia –
Mesure et gestion de la couleur –
Partie 9:
Appareils numériques de prise de vue

 IEC 2000  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 Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
V
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61966-9  IEC:2000(E)
CONTENTS
Page
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
4.2.1 Measurement arrangement. 7
4.2.2 Illumination . 8
4.2.3 Shooting conditions . 8
4.2.4 Digital image data . 9
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. 10
5.5 Radiance meter. 13
5.6 Spectroradiometer. 13
5.7 Luminance meter . 13
6 Tone characteristics . 13
6.1 Characteristics to be measured . 13
6.2 Measurement conditions . 14
6.3 Method of measurement. 14
6.4 Presentation of results . 14
7 Spectral responsivity characteristics . 15
7.1 Characteristics to be measured . 15
7.2 Measurement conditions . 16
7.3 Method of measurement. 16
7.4 Presentation of results . 17
8 Spectral distribution of built-in electronic flash . 18

8.1 Characteristics to be measured . 18
8.2 Measurement conditions . 18
8.3 Method of measurement. 18
8.4 Presentation of results . 19
9 Spatial non-uniformity. 19
9.1 Characteristics to be measured . 19
9.2 Measurement conditions . 19
9.3 Method of measurement. 19
9.4 Presentation of results . 20

61966-9  IEC:2000(E) – 3 –
Annex A (normative) Letters and symbols . 22

Annex B (informative) Procedure to calculate the inverse function. 23

Annex C (informative) An example use of the reported results for colour management . 24

C.1 Introduction. 24

C.2 Colorimetric characteristics of the sRGB colour space. 24

C.3 Colour control for digital cameras. 24

C.3.1 Matching tone characteristics to the sRGB. 24

C.3.2 Colorimetric match to the sRGB. 25

C.3.3 Transformation from image data of digital cameras to the data
in sRGB colour space. 27
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
E.1 Introduction. 29
E.2 Horizontal image shift. 30
E.3 Vertical image shift . 30
E.4 Image rotation.30
E.5 Image magnification.30
Bibliography.31

– 4 – 61966-9  IEC:2000(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
MULTIMEDIA SYSTEMS AND EQUIPMENT –

COLOUR MEASUREMENT AND MANAGEMENT –

Part 9: Digital cameras
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this international standard may be the subject
of patent rights. The 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.
The text of this standard is based on the following documents:

FDIS Report on voting
100/130/FDIS 100/151/RVD
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 3.

61966-9  IEC:2000(E) – 5 –
IEC 61966 consists of the following parts, under the general title: Multimedia systems and

equipment – Colour measurement and management:

� Part 1: General
� Part 2-0: Colour management

� Part 2-1: Colour management – Default RGB colour space – sRGB

� Part 2-2: Colour management – Extended RGB colour space – sRGB64
� Part 3: Equipment using cathode ray tubes
� Part 4: Equipment using liquid crystal display panels
� Part 5: Equipment using plasma display panels
� Part 6: Equipment for use on digital data projections
� Part 7-1: Colour printers – Reflective prints – RGB inputs
� Part 7-2: Colour printers – Reflective prints – CMYK inputs
� Part 7-3: Colour printers – Transparent prints
� Part 8: Multimedia colour scanners
� Part 9: Digital cameras
� Part 10: Quality assessment – Colour image in network systems
� Part 11: Quality assessment – Impaired video in network systems
Annexes A and D form integral parts of this standard.
Annexes B, C and E are for information only.

A bilingual version of this publication may be issued at a later date.
The committee has decided that the contents of this publication will remain unchanged until
2003. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
– 6 – 61966-9  IEC:2000(E)
MULTIMEDIA SYSTEMS AND EQUIPMENT –

COLOUR MEASUREMENT AND MANAGEMENT –

Part 9: Digital cameras
1 Scope
This part of IEC 61966 is applicable to the assessment of colour reproduction of digital
cameras used in open computer systems and similar applications.
A series of methods and parameters for colour measurements and management for use in
multimedia systems and equipment is applicable to the assessment of colour reproduction.
Part 9 deals with digital cameras to capture colour still images and moving images for use in
multimedia applications.
The methods of measurement standardized
...

NORME CEI
INTERNATIONALE IEC
61966-9
INTERNATIONAL
Première édition
STANDARD
First edition
2000-06
Systèmes et appareils multimédia –
Mesure et gestion de la couleur –
Partie 9:
Appareils numériques de prise de vue
Multimedia systems and equipment –
Colour measurement and management –
Part 9:
Digital cameras
Numéro de référence
Reference number
CEI/IEC 61966-9:2001
Numérotation des publications Publication numbering

Depuis le 1er janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are

sont numérotées à partir de 60000. Ainsi, la CEI 34-1 issued with a designation in the 60000 series. For
devient la CEI 60034-1. example, IEC 34-1 is now referred to as IEC 60034-1.

Editions consolidées Consolidated editions

Les versions consolidées de certaines publications de la The IEC is now publishing consolidated versions of its

CEI incorporant les amendements sont disponibles. Par publications. For example, edition numbers 1.0, 1.1
exemple, les numéros d’édition 1.0, 1.1 et 1.2 indiquent and 1.2 refer, respectively, to the base publication,
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NORME CEI
INTERNATIONALE IEC
61966-9
INTERNATIONAL
Première édition
STANDARD
First edition
2000-06
Systèmes et appareils multimédia –
Mesure et gestion de la couleur –
Partie 9:
Appareils numériques de prise de vue
Multimedia systems and equipment –
Colour measurement and management –
Part 9:
Digital cameras
 IEC 2001 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
V
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 61966-9  CEI:2001
SOMMAIRE
Pages
AVANT-PROPOS . 6

Articles
1 Domaine d’application . 10

2 Références normatives. 10

3 Termes et définitions. 12
4 Conditions. 12
4.1 Conditions d’environnement . 12
4.2 Conditions de mesures. 14
4.2.1 Disposition de mesure . 14
4.2.2 Éclairage. 14
4.2.3 Conditions de prise de vue . 16
4.2.4 Données numériques d’image. 16
5 Appareils de mesure . 16
5.1 Source de lumière spectrale. 16
5.2 Filtre de conversion de température de couleur . 18
5.3 Boîte noire . 18
5.4 Mires . 20
5.5 Appareil de mesure de la luminance énergétique. 24
5.6 Spectroradiomètre. 26
5.7 Luminancemètre . 26
6 Caractéristiques de niveaux . 26
6.1 Caractéristiques à mesurer . 26
6.2 Conditions de mesure . 26
6.3 Méthode de mesure . 28
6.4 Présentation des résultats . 28
7 Caractéristiques de sensibilité spectrale . 32
7.1 Caractéristiques à mesurer . 32
7.2 Conditions de mesure . 32
7.3 Méthode de mesure . 32

7.4 Présentation des résultats . 34
8 Répartition spectrale du flash électronique intégré. 38
8.1 Caractéristiques à mesurer . 38
8.2 Conditions de mesure . 38
8.3 Méthode de mesure . 38
8.4 Présentation des résultats . 38
9 Non-uniformité spatiale . 40
9.1 Caractéristiques à mesurer . 40
9.2 Conditions de mesure . 40
9.3 Méthode de mesure . 40
9.4 Présentation des résultats . 42

61966-9  IEC:2001 – 3 –
CONTENTS
Page
FOREWORD . 7

Clause
1 Scope . 11

2 Normative references . 11

3 Terms and definitions. 13
4 Conditions. 13
4.1 Environmental conditions . 13
4.2 Conditions of measurements . 15
4.2.1 Measurement arrangement. 15
4.2.2 Illumination . 15
4.2.3 Shooting conditions . 17
4.2.4 Digital image data . 17
5 Measurement equipment . 17
5.1 Spectral light source . 17
5.2 Colour temperature conversion filter. 19
5.3 Dark box . 19
5.4 Test charts. 21
5.5 Radiance meter. 25
5.6 Spectroradiometer. 27
5.7 Luminance meter . 27
6 Tone characteristics . 27
6.1 Characteristics to be measured . 27
6.2 Measurement conditions . 27
6.3 Method of measurement. 29
6.4 Presentation of results . 29
7 Spectral responsivity characteristics . 33
7.1 Characteristics to be measured . 33
7.2 Measurement conditions . 33
7.3 Method of measurement. 33

7.4 Presentation of results . 35
8 Spectral distribution of built-in electronic flash . 39
8.1 Characteristics to be measured . 39
8.2 Measurement conditions . 39
8.3 Method of measurement. 39
8.4 Presentation of results . 39
9 Spatial non-uniformity. 41
9.1 Characteristics to be measured . 41
9.2 Measurement conditions .
...