1、BSI Standards Publication BS ISO/IEC 17823:2015 Colour terminology for office colour equipmentBS ISO/IEC 17823:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO/IEC 17823:2015. The UK participation in its preparation was entrusted to Technical Committee IS
2、T/3, IT Printers and Cartridges. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Instit
3、ution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 78109 4 ICS 37.100.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2015. Amen
4、dments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO/IEC 17823:2015 Colour terminology for office colour equipment Terminologie couleur pour quipement couleur de bureau INTERNATIONAL STANDARD ISO/IEC 17823 Reference number ISO/IEC 17823:2015(E) First edition 2015-09-15 ISO/I
5、EC 2015 BS ISO/IEC 17823:2015ii ISO/IEC 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechani
6、cal, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Swi
7、tzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO/IEC 17823:2015(E)BS ISO/IEC 17823:2015ISO/IEC 17823:2015(E)Foreword iv Introduction v 1 Scope . 1 2 Terms and definitions . 1 Annex A (informative) Classification of terms according to definitions in previously publ
8、ished International Standards . 9 Annex B (informative) Primary colours and typical input in various devices vs market segments 11 Annex C (informative) Alphabetical index .13 Bibliography .15 ISO/IEC 2015 All rights reserved iii Contents PageBS ISO/IEC 17823:2015ISO/IEC 17823:2015(E) Foreword ISO (
9、the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees
10、 established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
11、In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria
12、needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent r
13、ights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name
14、used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical
15、 Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/IEC JTC 1, Information technology, Subcommittee SC 28, Office equipment.iv ISO/IEC 2015 All rights reservedBS ISO/IEC 17823:2015ISO/IEC 17823:2015(E) Introduction T
16、echnical colour terms have been published in various fields of standards such as colour photography, graphic technology printing and computer graphics. However, no standard colour terms have been published for office equipment. As a result, misunderstandings between users and colour office equipment
17、 providers can occur when terms are interpreted differently. The purpose of this International Standard is to provide terminology for use by office equipment providers to help customers use their colour equipment effectively. ISO/IEC 2015 All rights reserved vBS ISO/IEC 17823:2015BS ISO/IEC 17823:20
18、15Colour terminology for office colour equipment 1 Scope This International Standard provides definitions for colour terms used with office equipment, in particular for use with colour scanning and printing devices that have digital imaging capabilities, including multi-function devices. This Intern
19、ational Standard is not intended to replace terms and definitions published in documents or user interfaces issued or created by manufacturers. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 colour balance adjustment of colour channel gains
20、or processing 2.1.1 grey balance set of tone values for cyan, magenta and yellow that are expected to appear as an achromatic grey under specified viewing conditions when printed using the specified printing conditions Note 1 to entry: The user can choose between the following two practical definiti
21、ons and one theoretical definition of grey, depending upon the particular context. a) practical definitions: 1) a colour having the same CIELAB a* and b* values as the print substrate; 2) a colour that has the same CIELAB a* and b* values as a half-tone tint of similar L* value printed with black in
22、k; b) theoretical definition: 1) the colourimetric definition of grey is when the CIELAB a* and b* values are both equal to 0. SOURCE: ISO/TS 10128:2009, 3.3, modified 2.2 black 2.2.1 composite black printing black with multiple colourants 2.2.2 pure black black generated only in black colourant in
23、a printing device 2.2.3 rich black black generated by a mixture of black colourant and other colourants in a printing device INTERNATIONAL ST ANDARD ISO/IEC 17823:2015(E) ISO/IEC 2015 All rights reserved 1BS ISO/IEC 17823:2015ISO/IEC 17823:2015(E) 2.3 calibration set of operations that establish, un
24、der specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system, or values represented by a material measure or a reference material, and the corresponding values realized by standards SOURCE: ISO 14807:2001, 3.11 2.4 colour appearance
25、aspect of visual perception by which things are recognized by their colour SOURCE: CIE S17 /E:2011 ILV, 17-199, modified “2.” part has been removed. 2.4.1 brightness attribute of a visual perception according to which an area appears to emit, or reflect, more or less light SOURCE: CIE S17 /E:2011 IL
26、V, 17-111 2.4.2 colourfulness attribute of a visual sensation according to which the perceived colour of an area appears to be more or less chromatic SOURCE: ISO/IEC 8613-2:1995 2.4.3 highlight colour especially light and low chroma colour 2.4.4 metamerism phenomenon characterized by the difference
27、in colour observed when two specimens visually matching under a given light source are viewed under another light source with different spectral characteristics SOURCE: ISO 4618:2014, 2.157 2.4.5 vividness attribute of colour used to indicate the degree of departure of the colour from a neutral blac
28、k colour 2.5 colour difference perceived dissimilarity between two colour elements SOURCE: CIE S17 /E:2011 ILV, 17-206 2.6 colour encoding 2.6.1 colour palette fixed set or range of available colours that can be selected SOURCE: ISO/TS 16071:2003, 3.8 2.6.2 full colour method of representing colours
29、 with 3-channel or more, and each channel has 8-bit or more information Note 1 to entry: Each channel may have 12,16-bit. In ”Commercial printing”, there are multi-channel colour reproduction such as “CMYKOG”.2 ISO/IEC 2015 All rights reservedBS ISO/IEC 17823:2015ISO/IEC 17823:2015(E) 2.6.3 indexed
30、colour palette colour colour selection scheme in which the colour index is used to retrieve colour values from a colour table SOURCE: ISO/IEC 8632-1:1999, 4.1.62 2.6.4 named colour colour with associated colour expression specification 2.6.5 spot colour single colourant, identified by name, whose pr
31、inting tone-values are specified independently from the colour values specified in a colour coordinate system SOURCE: ISO 12639:2004, 4.1.10 2.7 colour management communication of the associated data required for unambiguous interpretation of colour content data, and application of colour data conve
32、rsions, as required, to produce the intended reproductions SOURCE: ISO 15076-1:2010, 3.1.11 2.7.1 characterization process of relating device-dependent colour values to device-independent colour values SOURCE: ISO 12637-2:2008, 2.7 2.7.2 colour gamut volume, area, or solid in a colour space, consist
33、ing of all those colours that are either a) present in a specific scene, artwork, photograph, photomechanical, or other reproduction, or b) capable of being created using a particular output device and/or medium Note 1 to entry: In reproduction and media applications, only the volume or solid in col
34、our space is regarded as colour gamut. In applications such as signal lighting, the colour gamut is an area. SOURCE: CIE S17 /E:2011 ILV, 17-211 2.7.3 gamut mapping mapping of the colour space coordinates of the elements of a source image to colour space coordinates of the elements of a reproduction
35、 to compensate for differences in the source and output medium colour gamut capability Note 1 to entry: The term “gamut mapping” is somewhat more restrictive than the term “colour rendering” because gamut mapping is performed on colourimetry that has already been adjusted to compensate for viewing c
36、ondition differences and viewer preferences, although these processing operations are frequently combined in reproduction and preferred reproduction models. SOURCE: ISO 22028-1:2004, 3.22 2.7.4 International Color Consortium ICC industry association formed to develop standardized mechanisms for colo
37、ur management SOURCE: ISO 15930-3:2002, 3.9 ISO/IEC 2015 All rights reserved 3BS ISO/IEC 17823:2015ISO/IEC 17823:2015(E) 2.7.5 ICC profile International Color Consortiums file format, used to store transforms from one colour encoding to another SOURCE: ISO 22028-1:2004, 3.24, modified e.g. part has
38、been removed. 2.7.6 rendering intent style of mapping colour values from one image description to another SOURCE: ISO 15076-1:2010, 3.1.27 2.8 colour space geometric representation of colours in space, usually of three dimensions SOURCE: ISO 22028-1:2004, 3.13 2.8.1 colour space encoding digital enc
39、oding of a colour space, including the specification of a digital encoding method, and a colour space value range Note 1 to entry: Multiple colour space encodings may be defined based on a single colour space where the different colour space encodings have different digital encoding methods and/or c
40、olour space value ranges. (For example, 8-bit sRGB and 10-bit e-sRGB are different colour space encodings based on a particular additive RGB colour space.) SOURCE: ISO 22028-1:2004, 3.14 2.8.2 device-dependent colour space colour space defined by the characteristics of a real or idealized imaging de
41、vice Note 1 to entry: Device-dependent colour spaces having a simple functional relationship to CIE colourimetry can also be categorized as colourimetric colour spaces. For example, additive RGB colour spaces corresponding to real or idealized CRT displays can be treated as colourimetric colour spac
42、es. SOURCE: ISO 22028-1:2004, 3.17 2.8.3 device-independent colour space colour coordinate system defined in terms of the amounts of visual stimuli colour capabilities independent of the specific device characteristics SOURCE: ISO 12637-2:2008, 2.47 2.9 daylight illuminant illuminant having the same
43、 or nearly the same relative spectral power distribution as a phase of daylight SOURCE: IEC 60050, 845-03-11 2.10 dynamic range difference between peak white and the black level SOURCE: ISO 22493:2014, 4.7.2 2.11 environment4 ISO/IEC 2015 All rights reservedBS ISO/IEC 17823:2015ISO/IEC 17823:2015(E)
44、 2.11.1 adapted white colour stimulus that an observer who is adapted to the viewing environment would judge to be perfectly achromatic and to have a luminance factor of unity; i.e. absolute colorimetric coordinates that an observer would consider to be a perfect white diffuser Note 1 to entry: The
45、adapted white may vary within a scene. SOURCE: ISO 22028-1:2004, 3.2 2.11.2 glare discomfort or impairment of vision experienced when parts of the visual field are excessively bright in relation to the brightness of the general surroundings to which the eyes are adapted SOURCE: ISO 11064-6:2005, 3.7
46、 2.11.3 surface colour colour perceived as belonging to a surface from which the light appears to be diffusely reflected or radiated SOURCE: IEC 60050, 845-02-20 2.11.4 surround area adjacent to the border of an image, which, upon viewing the image, may affect the local state of adaptation of the ey
47、e SOURCE: ISO 12646:2008, 3.1.15 2.11.5 viewing conditions description of the surrounding environmental conditions during the process of viewing SOURCE: ISO/TS 18173:2005, 2.28 2.12 grey 2.12.1 composite grey printing grey with multiple colourants 2.12.2 greyscale image representation in which each
48、pixel is defined by a single sample of colour information, representing overall luminance (on a scale from black to white), and optionally an alpha sample (in which case it is called greyscale with alpha) SOURCE: ISO/IEC 15948:2004, 3.1.21 2.12.3 pure grey grey generated only in black colourant in a
49、 printing device 2.13 luminance ratio ratio of the maximum luminance to the minimum luminance that is either: present in a specific scene, artwork, photograph, photomechanical, or other reproduction; or is capable of being created using a particular output device and medium SOURCE: ISO 22028-1:2004, 3.28 ISO/IEC 2015 All rights reserved 5BS ISO/IEC 17823:2015ISO/IEC 17823:2015(E) 2.14 measuring instrument 2.14.1 spectrophotometer optical instrumen
