Contents
Page
Introduction..............................................................................................................................................................
iii
1
Scope ............................................................................................................................................................
1
2
Normative references.....................................................................................................................................
1
3
Definitions, abbreviations and symbols .........................................................................................................
1
4
General .........................................................................................................................................................
12
5
Interchange format requirements ...................................................................................................................
23
6
Encoder requirements ...................................................................................................................................
23
7
Decoder requirements ...................................................................................................................................
23
Annex A Mathematical definitions........................................................................................................................
24
Annex B Compressed data formats........................................................................................................................
31
Annex C Huffman table specification....................................................................................................................
50
Annex D Arithmetic coding ..................................................................................................................................
54
Annex E Encoder and decoder control procedures ................................................................................................
77
Annex F Sequential DCT-based mode of operation...............................................................................................
87
Annex G Progressive DCT-based mode of operation.............................................................................................
119
Annex H Lossless mode of operation ....................................................................................................................
132
Annex J Hierarchical mode of operation................................................................................................................
137
Annex K Examples and guidelines........................................................................................................................
143
Annex L Patents....................................................................................................................................................
179
Annex M Bibliography..........................................................................................................................................
181
CCITT Rec. T.81 (1992 E)
i