Rec. ITU-T T.814 (06/2019) - Information technology – JPEG 2000 image coding system: High-throughput JPEG 2000
Summary
History
FOREWORD
CONTENTS
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Conventions and symbols
6 Conformance
     6.1 HTJ2K codestream
     6.2 HTJ2K decoding algorithm
     6.3 JPH file
7 HT block-decoding algorithm
     7.1 Retrieving bit-streams from HT segments
          7.1.1 General
          7.1.2 Magsgn bit-stream recovery
          7.1.3 MEL bit-stream recovery
          7.1.4 HT VLC bit-stream recovery
          7.1.5 HT SigProp bit-stream recovery
          7.1.6 HT MagRef bit-stream recovery
     7.2 Quad-based scanning pattern
     7.3 HT cleanup decoding algorithm
          7.3.1 Overview
          7.3.2 Significance, exponents, predictors, MagSgn values and EMB pattern bits
          7.3.3 MEL symbol decoding procedure
          7.3.4 Quad-pair interleaved decoding for the VLC bit-stream
          7.3.5 Decoding of significance and EMB patterns and unsigned residual offsets
          7.3.6 Decoding of unsigned residuals
          7.3.7 Determination of predictors and exponent bounds
          7.3.8 Unpacking the HT MagSgn bit-stream
     7.4 HT SigProp decoding procedure
     7.5 HT MagRef decoding procedure
     7.6 Sample output values
8 Constrained codestream sets
     8.1 Overview
     8.2 HTONLY, HTDECLARED and MIXED sets
     8.3 SINGLEHT and MULTIHT sets
     8.4 RGN and RGNFREE sets
     8.5 HOMOGENEOUS and HETEROGENEOUS sets
     8.6 LOCAL and FRAG sets
     8.7 Bounded magnitude sets
          8.7.1 Overview
          8.7.2 HTIRV and HTREV sets
          8.7.3 MAGBP sets
     8.8 CPFN sets
9 Media types
Annex A    HTJ2K  codestream syntax
     A.1 General
     A.2 SIZ marker segment
     A.3 CAP marker segment
     A.3.1 General
     A.3.2 Bits 14-15 of Ccap15
     A.3.3 Bit 13 of Ccap15
     A.3.4 Bit 12 of Ccap15
     A.3.5 Bit 11 of Ccap15
     A.3.6 Bit 5 of Ccap15
     A.3.7 Bits 0-4 of Ccap15
     A.4 COD and COC marker segments
     A.5 RGN marker segment
     A.6 CPF marker segment
Annex B   HT data organization
     B.1 HT sets
     B.2 HT segments
     B.3 Packets, Z_blk and S_blk
Annex C   CxtVLC tables
Annex D   JPH file format
     D.1 General
     D.2 JP2 Header box
     D.3 File Type box
     D.4 Colour Specification box
     D.4.1 Additional METH values
     D.4.2 Any International Color Consortium method
     D.4.3 Parameterized colourspace
     D.5 Contiguous codestream box
     D.6 Channel Definition box
     D.6.1 Single alpha channel
     D.6.2 Multiple channels per colour
     D.6.3 Application-specified colour
Annex E   Media type specifications and registrations
     E.1 General
     E.2 JPH file
     E.2.1 General
     E.2.2 Registration
     E.3 Single HTJ2K codestream
     E.3.1 General
     E.3.2 Registration
Annex F   HT block encoding procedures
     F.1 Overview
     F.2 Bit-planes, exponents, MagSgn and EMB patterns
     F.3 Cleanup pass encoding steps
     F.4 Bit-stuffing and byte-stream termination procedures
Bibliography