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ISO/IEC 18181-2:2024

(Main)

Information technology — JPEG XL image coding system — Part 2: File format

Information technology — JPEG XL image coding system — Part 2: File format

This document specifies the transport and container formats for JPEG XL codestreams as specified in ISO/IEC 18181-1. This document specifies how to add metadata and extensions to JPEG XL codestreams. A file as described by this document is called a JPEG XL file.

Technologies de l'information - Systѐme de codage d'images JPEG XL — Partie 2: Format de fichiers

General Information

Status
Published
Publication Date
17-Jun-2024
ICS
35.040.30 - Coding of graphical and photographical information
Technical Committee
ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
Drafting Committee
ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
Current Stage
6060 - International Standard published
Start Date
18-Jun-2024
Due Date
16-Jun-2025
Completion Date
18-Jun-2024
Ref Project

Relations

Revises
ISO/IEC 18181-2:2021 - Information technology — JPEG XL image coding system — Part 2: File format
Effective Date
25-Jun-2022

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ISO/IEC 18181-2:2024 - Information technology — JPEG XL image coding system — Part 2: File format Released:18. 06. 2024ISO/IEC 18181-2:2024 - Information technology — JPEG XL image coding system — Part 2: File format Released:18. 06. 2024
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ISO/IEC FDIS 18181-2 - Information technology — JPEG XL image coding system — Part 2: File format Released:18. 01. 2024ISO/IEC FDIS 18181-2 - Information technology — JPEG XL image coding system — Part 2: File format Released:18. 01. 2024
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REDLINE ISO/IEC FDIS 18181-2 - Information technology — JPEG XL image coding system — Part 2: File format Released:18. 01. 2024REDLINE ISO/IEC FDIS 18181-2 - Information technology — JPEG XL image coding system — Part 2: File format Released:18. 01. 2024
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Standards Content (Sample)

International
Standard
ISO/IEC 18181-2
Second edition
Information technology — JPEG XL
2024-06
image coding system —
Part 2:
File format
Technologies de l'information - Systѐme de codage d'images
JPEG XL —
Partie 2: Format de fichiers
Reference number
ISO/IEC 18181-2:2024(en) © ISO/IEC 2024

---------------------- Page: 1 ----------------------
ISO/IEC 18181-2:2024(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 18181-2:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General . 2
5 File organization . 2
6 Data types and numerical values . 3
7 Graphical descriptions . 3
8 Binary format of a box . . 4
9 Box types . 4
9.1 JPEG XL Signature box .4
9.2 File Type box .5
9.3 Level box .5
9.4 JUMBF box .5
9.5 Exif box .5
9.6 XML box .6
9.7 Brotli-compressed box .
...

FINAL DRAFT
International
Standard
ISO/IEC
FDIS
18181-2
ISO/IEC JTC 1/SC 29
Information technology — JPEG XL
Secretariat: JISC
image coding system —
Voting begins on:
2024-02-01
Part 2:
File format
Voting terminates on:
2024-03-28
Technologies de l'information - Systѐme de codage d'images JPEG
XL —
Partie 2: Format de fichiers
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/IEC FDIS 18181­2:2024(en) © ISO/IEC 2024

---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/IEC FDIS 18181-2:2024(en)
International
Standard
ISO/IEC
FDIS
18181-2
ISO/IEC JTC 1/SC 29
Information technology — JPEG XL
Secretariat: JISC
image coding system —
Voting begins on:
Part 2:
File format
Voting terminates on:
Technologies de l'information - Systѐme de codage d'images JPEG
XL —
Partie 2: Format de fichiers
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO/IEC 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
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 Reference number
ISO/IEC FDIS 18181­2:2024(en) © ISO/IEC 2024

© ISO/IEC 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/IEC FDIS 18181-2:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General . 2
5 File organization . 2
6 Data types and numerical values . 3
7 Graphical descriptions . 3
8 Binary format of a box . . 4
9 Box types . 4
9.1 JPEG XL Signature box .
...

Reference number of working document: ISO/IEC FDIS 18181-2
ISO/IEC JTC 1/SC 29/WG 1 N100647
Date: 2023-11-03
Reference number of project: ISO/IEC/FDIS 18181-2
Committee identification: ISO/JTC 1/SC 29/WG 1
Secretariat: JISC
Date: 2024-01-17
Information technology — JPEG XL image coding system — —
Part 2:
File format
Technologies de l’information —l'information - Systѐme de codage d’imagesd'images JPEG XL — —
Partie 2: Format de fichiers
FDIS stage

---------------------- Page: 1 ----------------------
ISO/IEC/DIS FDIS 18181-2:2023(E2024(en)
© ISO/IEC 20232024
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
EmailE-mail: copyright@iso.org
Website: www.iso.org www.iso.org
Published in Switzerland
ii © ISO/IEC 2023 2024 – All rights reserved

ii

---------------------- Page: 2 ----------------------
ISO/IEC/DIS FDIS 18181-2:2023(E2024(en)
Contents
Foreword . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 General .2
5 File organization .2
6 Data types and numerical values .3
7 Graphical descriptions .4
8 Binary format of a box .4
9 Box types .5
9.1 JPEG XL Signature box .5
9.2 File Type box .5
9.3 Level box .5
9.4 JUMBF box .6
9.5 Exif box .6
9.6 XML box .6
9.7 Brotli-compressed box .6
9.8 Frame Index box .
...

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