ISO/IEC 10918-5:2013

INTERNATIONAL ISO/IEC
STANDARD 10918-5
First edition
2013-05-01


Information technology — Digital
compression and coding of continuous-
tone still images: JPEG File Interchange
Format (JFIF)
Technologies de l'information — Compression numérique et codage
des images fixes à modelé continu: Format d'échange de fichiers JPEG
(JFIF)





Reference number
ISO/IEC 10918-5:2013(E)
©
ISO/IEC 2013

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ISO/IEC 10918-5:2013(E)

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ii © ISO/IEC 2013 – All rights reserved

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ISO/IEC 10918-5:2013(E)
Foreword
ISO (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
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. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 10918-5 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information, in collaboration with
ITU-T. The identical text is published as Rec. ITU-T T.871 (05/2011).
ISO/IEC 10918 consists of the following parts, under the general title Information technology — Digital
compression and coding of continuous-tone still images:
 Part 1: Requirements and guidelines
 Part 2: Compliance testing
 Part 3: Extensions
 Part 4: Registration of JPEG profiles, SPIFF profiles, SPIFF tags, SPIFF colour spaces, APPn markers,
SPIFF compression types and Registration Authorities (REGAUT)
 Part 5: JPEG File Interchange Format (JFIF)
 Part 6: Application to printing systems

© ISO/IEC 2013 – All rights reserved iii

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ISO/IEC 10918-5:2013(E)
Table of Contents
Page
1 Scope . 1
2 Normative references. 1
2.1 Identical Recommendations | International Standards . 1

2.2 Paired Recommendations | International Standards equivalent in technical content . 1
2.3 Additional references . 1

3 Definitions . 1
4 Abbreviations . 1
5 Conformance . 2
6 JPEG File Interchange Format (JFIF) overview . 2
6.1 JPEG compression .
...