Technologies de l'information — Systѐme de codage d'images JPEG XL — Partie 1: Système de codage de noyau

This document specifies a set of compression methods for coding one or more images of bi-level, continuous-tone greyscale, or continuous-tone colour, or multichannel digital samples.

This document:

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

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specifies a codestream syntax containing information for interpreting the compressed image data;

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provides guidance on encoding processes for converting source image data to compressed image data.