Information technology — Scalable compression and coding of continuous-tone still images — Part 1: Core coding system specification

This document specifies a coding format, referred to as JPEG XT, which is designed primarily for continuous-tone photographic content. This document defines the core coding system, which forms the basis for the entire ISO/IEC 18477 series.

Technologies de l'information — Compression échelonnable et codage d'images plates en ton continu — Partie 1: Spécification du système de codage de noyau

General Information

Status
Published
Publication Date
30-May-2024
Current Stage
6060 - International Standard published
Start Date
31-May-2024
Due Date
09-Aug-2024
Completion Date
31-May-2024
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Standards Content (Sample)

International
Standard
ISO/IEC 18477-1
Third edition
Information technology — Scalable
2024-05
compression and coding of
continuous-tone still images —
Part 1:
Core coding system specification
Technologies de l'information — Compression échelonnable et
codage d'images plates en ton continu —
Partie 1: Spécification du système de codage de noyau
Reference number
ISO/IEC 18477-1:2024(en) © ISO/IEC 2024

---------------------- Page: 1 ----------------------
ISO/IEC 18477-1:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, 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 ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland

© ISO/IEC 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/IEC 18477-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 3
4.1 Symbols .3
4.2 Abbreviated terms .3
5 Conventions . 4
5.1 Conformance language .4
5.2 Operators .4
5.2.1 Arithmetic operators .4
5.2.2 Assignment operators .4
5.2.3 Precedence order of operators .4
5.2.4 Mathematical functions .4
6 General . 5
6.1 General definitions.5
6.2 Fun
...

International
Standard
ISO/IEC 18477-1
Third edition
Information technology — Scalable
compression and coding of
continuous-tone still images —
Part 1:
Core coding system specification
Technologies de l'information — Compression échelonnable et
codage d'images plates en ton continu —
Partie 1: Spécification du système de codage de noyau
PROOF/ÉPREUVE
Reference number
ISO/IEC 18477-1:2024(en) © ISO/IEC 2024

---------------------- Page: 1 ----------------------
ISO/IEC 18477-1:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, 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 ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO/IEC 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/IEC 18477-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 3
4.1 Symbols .3
4.2 Abbreviated terms .3
5 Conventions . 4
5.1 Conformance language .4
5.2 Operators .4
5.2.1 Arithmetic operators .4
5.2.2 Assignment operators .4
5.2.3 Precedence order of operators .4
5.2.4 Mathematical functions .4
6 General . 5
6.1 General definitions.
...

ISO/IEC JTC 1/SC 29/WG1 N100637


     101th meeting – Online – October 2023


ISO/IEC JTC 1/SC 29/WG 1
(& ITU-T SG16)

Coding of Still Pictures

JBIG        JPEG
Joint Bi-level Image     Joint Photographic
Experts Group       Experts Group


TITLE: Text of ISO/IEC ISISO/IEC PRF 18477-1
SOURCE: Thomas Richter (thomas.richter@iis.fraunhofer.de)
PROJECT: ISO/IEC 18477-1
  Information Technology:
  Scalable Compression and Coding of Continuous-Tone Still Images
  Part 1: Core coding system specification
STATUS: IS
REQUESTED
ACTION: For publication
DISTRIBUTION: For WG1 review

Contact:
ISO/IEC JTC 1/SC 29/WG 1 Convener – Prof. Touradj Ebrahimi
EPFL/STI/IEL/GR-EB, Station 11, CH-1015 Lausanne, Switzerland
Tel: +41 21 693 2606, Fax: +41 21 693 7600, E-mail: Touradj.Ebrahimi@epfl.ch

---------------------- Page: 1 ----------------------
ISO/IEC JTC 1/SC 29
Date:  2019-08
ISO/IEC 18477-1:2020(E)
Secretariat: JISC
Date: 2024-04-17
Information technology — Scalable compression and coding of
continuous-tone still images —
Part 1:
Core coding system specification
Technologies de l'information — Compression échelonnable et codage d'images plates en ton continu —Partie
1: titre manque
Partie 1: Spécification du système de codage de noyau
FDIS stage

---------------------- Page: 2 ----------------------
ISO/IEC PRF 18477-1:2020(E2024(en)
© ISO 2020/IEC 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying
and microfilm, or posting on the internet or an intranet, without prior written permission in writing. Permission can be
requested from either ISO at the address below or ISO'sISO’s member body in the country of the requester.
ISO copyright office
Case postale 56 • CP 401 • Ch. de Blandonnet 8
CH-12111214 Vernier, Geneva 20
Tel.Phone: + 41 22 749 01 11
Fax + 41 22 734 10 79
E-mail copyright@iso.ch
Web www.iso.ch
PrintedE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO/IEC 2020 – All rights reserved iii
© ISO/IEC 2024 – All rights reserved
iii

---------------------- Page: 3 ----------------------
ISO/IEC PRF 18477-1:2020(E2024(en)
Contents Page
Foreword . vi
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 3
4.1 Symbols . 3
4.2 Abbreviated terms . 3
5 Conventions . 4
5.1 Conformance language. 4
5.2 Operators . 4
5.2.1 Arithmetic operators . 4
5.2.2 Assignment operators . 4
5.2.3 Precedence order of operators . 4
5.2.4 Mathematical functions . 5
6 General .
...

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