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ISO/IEC 15444-2:2021

Information technology - JPEG 2000 image coding system - Part 2: Extensions

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.


This document:


–      specifies extended decoding processes for converting compressed image data to reconstructed image data;


–      specifies an extended codestream syntax containing information for interpreting the compressed image data;


–      specifies an extended file format;


–      specifies a container to store image metadata;


–      defines a standard set of image metadata;


–      provides guidance on extended encoding processes for converting source image data to compressed image data;


–      provides guidance on how to implement these processes in practice.

Content Provider
International Organization for Standardization [iso]

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Document History
  • ISO/IEC 15444-2:2004
  • ISO/IEC 15444-2:2004/Amd 2:2006
  • ISO/IEC 15444-2:2004/Amd 3:2015
  • ISO/IEC 15444-2:2004/Amd 4:2015
  • ISO/IEC 15444-2:2004/Cor 3:2005
  • ISO/IEC 15444-2:2004/Cor 4:2007
Revised By:
Included in Packages
This standard is not included in any packages.
Amendments & Corrections
We have no amendments or corrections for this standard.

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