Recommendation ITU-T T.840.4 (06/2026) - Information technology – JPEG AI learning-based image coding system: Conformance
Summary
History
FOREWORD
CONTENTS
1 Scope
2 Normative references
     2.1 Identical Recommendations | International Standards
     2.2 Paired Recommendations | International Standards equivalent in technical content
     2.3 Additional references
3 Definitions
4 Abbreviations
5 Conventions
     5.1 General
     5.2 Arithmetic operators
6 General description
     6.1 Overview
     6.2 Electronic attachment
     6.3 Conformance files availability and updates
7 Decoder testing procedures
     7.1 General
     7.2 Decoder test procedure
     7.3 Test procedures for a TCS element
     7.4 Files for testing
     7.5 Decoder settings
     7.6 Output file format conversion
     7.7 Sample format conversion
     7.8 Reference components file format (PGX)
          7.8.1 General
          7.8.2 Header file format
          7.8.3 Data file format
     7.9 Comparison of the decoded image components with the original image components
     7.10 Comparison of the decoded latent space tensor with the reference latent space tensor
8 Decoder conformance tests
     8.1 General
     8.2 Reference codestreams for the Main@Simple profile
     8.3 Reference codestreams for the Main@Base profile
     8.4 Reference codestreams for the Main@High profile
9 Attached software (informative)
     9.1 List of attachments
     9.2 Installation of Python scripts