Annex B – Extension for continuous-tone colour and
gray-scale image documents
B.1 Introduction
B.2 References
B.3 Definitions
B.4 Characteristics supported by this document application profile
B.4.1
Overview
B.4.2 Colour representation
B.5 Definition of the document application profile
B.5.1 Overview
B.5.2 Content architecture for continuous-tone
image
B.5.2.1 Raster graphic
content architecture level
B.5.2.2 Coding attributes
B.6 Definition of the document application profile for soft-copy
communication
B.7 Preferred Huffman tables for T.81 encoding
B.8 JPEG data structure on continuous-tone image
B.8.1 Overview
B.8.2 Marker classification
B.8.3 Definition of the APP markers defined for
Group 4 Colour Fax
B.8.3.1 FAX option identifier
– G4FAX1 for gamut range
B.8.3.2 FAX option identifier
– G4FAX2 for illuminant data
B.8.3.3 Future option
identifiers – G4FAX3 to G4FAX255
B.8.4 Example of JPEG data structure for a
4:1:1 sub-sampled baseline mode
B.8.5 Scan data structure
B.8.6 Sub-sampling method
B.9 ASN.1 definition for Annex B/T.503
B.9.1 User data conveyed by SUD in CSS/RSSP
B.9.2 User data conveyed by SUD in CDCL/RDCLP
B.9.3 User data conveyed by SUD in CDS
B.9.4 Layout Object Descriptor (document layout
root) conveyed by CSUI/CDUI
B.9.6 Content Portion conveyed by CSUI/CDUI