IEC 61966-7-1:2001

Multimedia systems and equipment - Colour measurement and management - Part 7-1: Colour printers - Reflective prints - RGB inputs

Specifies a set of data in colour digital image files for measurements, sampling of successive prints, measurement conditions and forms of reporting the results so as to make possible the characterization of the colour printer and comparison of the results of measurements. Are applicable to reflective colour prints for consumer use

General Information

• Status: Published
• Publication Date: 27-May-2001
• ICS: 33.160.60 - Multimedia systems and teleconferencing equipment
• ICS: 35.180 - IT Terminal and other peripheral equipment
• ICS: 37.100.10 - Reproduction equipment
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 11-May-2006

Relations

• Revised: IEC 61966-7-1:2006 - Multimedia systems and equipment - Colour measurement and management - Part 7-1: Colour printers - Reflective prints - RGB inputs
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61966-7-1
First edition
2001-05
Multimedia systems and equipment –
Colour measurement and management –
Part 7-1:
Colour printers – Reflective prints –
RGB inputs
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

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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.
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INTERNATIONAL IEC
STANDARD
61966-7-1
First edition
2001-05
Multimedia systems and equipment –
Colour measurement and management –
Part 7-1:
Colour printers – Reflective prints –
RGB inputs
 IEC 2001  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
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International Electrotechnical Commission
For price, see current catalogue

– 2 – 61966-7-1  IEC:2001(E)
CONTENTS
FOREWORD . 4

INTRODUCTION .6

1 Scope . 7

2 Normative references. 7

3 Terms and definitions. 7

4 Letters and symbols. 9

5 Conditions. 10
5.1 Environmental conditions . 10
5.2 Sampling conditions. 10
5.3 Measurement conditions . 11
5.4 Method of calculation. 12
6 Spectral characteristics. 14
6.1 Attributes to be measured . 14
6.2 Method of measurement . 14
6.3 Presentation of the result. 14
7 Basic colorimetric characteristics . 15
7.1 Attribute to be measured. 15
7.2 Method of measurement . 15
7.3 Presentation of the results . 15
8 Tone reproduction characteristics . 16
8.1 Attribute to be measured. 16
8.2 Method of measurement . 16
8.3 Presentation of the results . 17
9 Spatial non-uniformity characteristics. 18
9.1 Attribute to be measured. 18
9.2 Method of measurement . 18
9.3 Presentation of the result. 18
10 Temporal instability characteristics . 19
10.1 Short-term instability. 19
10.2 Long-term instability . 20

11 Dependency on illuminants characteristics. 23
11.1 Attribute to be measured. 23
11.2 Method of measurement . 23
11.3 Presentation of the results . 23
Annex A (normative) The values in the colour digital image file . 25
Annex B (normative) Specification of the measurement positions and the reporting form. 31
Annex C (normative) Specification for the measurement of short-term instability
characteristics. 36
Annex D (informative) Method of interpolation from input RGB colour space to output
CIELAB colour space . 37
Annex E (informative) Estimation of effect for backing material change . 39
Annex F (informative) Recommended layout of the colour digital image file reproduced
as a piece of reflective print . 40

– 3 –
61966-7-1  IEC:2001(E)
Bibliography . 41

Figure 1 – Spectral reflectance of the primary and secondary saturated colours, and
white, grey and black .15

* * *
Figure 2 – Example plots for gamut of colours in the CIE 1976 L a b colour space . 16

Figure 3 – An example of reporting tone reproduction characteristics . 17

Figure D.1 – Cubic R , G and B input space . 37

Table 1 – Reference to table A.1 (a). 14

Table 2 – Reference to table A.1 (c) . 17
Table 3 – Conditions for sampling and measurements. 19
Table 4 – Specification of data in the colour digital image file and the form for reporting
the result in the long-term instability measurement. 22
Table 5 – Specification of colour patches . 23
Table 6 – Specification of data in the colour digital image file and the form of reporting
the result of dependency on illuminants measurement. 24
Table A.1 – Specification of the colour digital image file and the form for reporting . 25
Table B.1 – Form of reporting with measurement positions. 31
Table C.1 – Short-term instability characteristics. 36

– 4 – 61966-7-1  IEC:2001(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
MULTIMEDIA SYSTEMS AND EQUIPMENT –

COLOUR MEASUREMENT AND MANAGEMENT –

Part 7-1: Colour printers – Reflective prints – RGB inputs

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 61966-7-1 has been prepared by TC 100/TA 2: Colour
measurement and management, of 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
100/238/FDIS 100/248/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.
Annexes A, B and C form an integral part of this standard.
Annexes D, E and F are for information only.

– 5 –
61966-7-1  IEC:2001(E)
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 in multimedia systems

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

Part 2-2: Colour management – Extended RGB colour space – sRGB64

Part 2-3: Colour management – Default YCC colour space – sYCC

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 used for digital image projection
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
The committee has decided that the contents of this publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this standard may be issued at a later date.

– 6 – 61966-7-1  IEC:2001(E)
INTRODUCTION
This part of IEC 61966 is applicable to characterization of colour printers that produce colour

images on opaque substrate corresponding to digital
...