# ISO/IEC 15444-2:2021 — Withdrawn and superseded ISO standards

For ISO/IEC 15444-2:2021, item title is Information technology — JPEG 2000 image coding system — Part 2: Extensions; status code is 9599; successor is ISO/IEC 15444-2:2023; withdrawn / published date is 2021-11-12, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 15444-2:2021 _(verified: appears in the quote below)_
- **Item title:** Information technology — JPEG 2000 image coding system — Part 2: Extensions _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 15444-2:2023
- **Withdrawn / published date:** 2021-11-12 _(verified: appears in the quote below)_

## What the source says

> 81547,IS,,ISO/IEC 15444-2:2021,Information technology — JPEG 2000 image coding system — Part 2: Extensions,Technologies de l'information — Système de codage d'images JPEG 2000 — Partie 2: Extensions,2021-11-12,2,['35.040.30'],ISO/IEC JTC 1/SC 29,9599,"[39476,59455,33160,55504,43745,40827]",[84573],['en'],333,"<p>This document defines a set of lossless (bit-preserving) and lossy compression methods for coding continuous-tone, bi-level, grey-scale, colour digital still images, or multi-component images.</p><p>This document:</p><p>– specifies extended decoding processes for converting compressed image data to reconstructed image data;</p><p>– specifies an extended codestream syntax co

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).