Abstract Preview

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.


General information

  • Status :  Published
    Publication date : 2021-11
  • Edition : 2
    Number of pages : 333
  • :
    ISO/IEC JTC 1/SC 29
    Coding of audio, picture, multimedia and hypermedia information
  • 35.040.30
    Coding of graphical and photographical information

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal:

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