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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.