ISO/ECCD15444-1:1999(v1.0,9 December1999 SPIFF colour Spaces, APPn Markers, SPIFF, Compression types and Registration authorities (REGAUT) TU-T Recommendation T87 ISO/EC 14495-1, Lossless and near-lossless compression of continuous-tone still images-baseline ITU-T Recommendation T88 ISO/IEC 14492-1, Lossy/lossless coding of bi-level images Additional references ISO/EC 646: 1991, ISo 7-bit coded character set for information interchange ISo 5807: 1985, Information processing- Documentation symbols and conventions for data, program and system flowcharts, program network charts and system resources chart n.ICC.1:199809 International Electrotechnical Commission. Color management in multimedia systems: Part 2: Colour Management, Part 2-1: Default RGB colour space-SRGB IEC 61966-2-1 1998.9 October 1998 W3C, Extensible Markup Language(XML 1.0), Rec-xm1-19980210 Digital Imaging Group, Flashpix digital image file format. Version 1.0.1. 10 July 1997 Definitions For the purposes of this Recommendation International Standard, the following definitions apply Lx], floor function, Indicates the largest integer not exceeding x. Txl, ceiling function, Indicates the smallest integer not exceeded by x arithmetic coder: An entropy coder used to represent the data compactly auxiliary component: A component from the codestream that is used by the application outside the scope of colour space conversion. For example, an opacity component or a depth component would be an auxiliary bit-plane: A two dimensional array of bits. In this Recommendation Specification a bit-plane refers to all the bits of the same magnitude in all coefficients or samples Could refer to a bit-plane in a component, tile- component, code-block, region of interes bit stream: The actual sequence of bits resulting from the coding of a sequence of symbols. It does not include the marker segments in the d tile headers box: a building block defined by a unique type identifier and length. Some particular boxes may contain other boxes box contents: Refers to the data wrapped within the box structure and stored within the DBox field within the Box data structure box type: Specifies the kind of information that shall be stored with the box and stored within the TBox field within the box data structure cell An optional subdivision of a tile used for low-memory encoding and decoding cleanup pass: A coding pass performed on a single bit-plane of a code-block of coefficients. It is the first pass and only coding pass for the first significant bit-plane; the third and the last pass of all the remaining bit-planes codestream: A collection of one or more bit streams and associated (overhead) information required for their decoding and expansion into image data. Such overhead information is restricted to that required for expansion and may include, but is not limited to, marker segments indicating locations of particular bit streams ndicating transform, quantization and coding types, etc. code-block: A rectangular grouping of coefficients from the same sub-band of a tile-component ITU-T Rec. T 800(1999 CDV10)ISO/IEC CD15444-1 : 1999 (V1.0, 9 December 1999) 2 ITU-T Rec. T.800 (1999 CDV1.0) SPIFF colour Spaces, APPn Markers, SPIFF, Compression types and Registration authorities (REGAUT). — ITU-T Recommendation T.87 | ISO/IEC 14495-1, Lossless and near-lossless compression of continuous-tone still images-baseline. — ITU-T Recommendation T.88 | ISO/IEC 14492-1, Lossy/lossless coding of bi-level images 2.2 Additional references — ISO/IEC 646:1991, ISO 7-bit coded character set for information interchange. — ISO 5807:1985, Information processing - Documentation symbols and conventions for data, program and system flowcharts, program network charts and system resources charts. — International Color Consortium, ICC profile format specification. ICC.1:1998–09 — International Electrotechnical Commission. Color management in multimedia systems: Part 2: Colour Management, Part 2–1: Default RGB colour space—sRGB. IEC 61966–2–1 1998. 9 October 1998. — W3C, Extensible Markup Language (XML 1.0), Rec-xml-19980210 — Digital Imaging Group, Flashpix digital image file format. Version 1.0.1. 10 July 1997 3 Definitions For the purposes of this Recommendation | International Standard, the following definitions apply. , floor function, Indicates the largest integer not exceeding x. , ceiling function, Indicates the smallest integer not exceeded by x. arithmetic coder: An entropy coder used to represent the data compactly. auxiliary component: A component from the codestream that is used by the application outside the scope of colour space conversion. For example, an opacity component or a depth component would be an auxiliary component. bit-plane: A two dimensional array of bits. In this Recommendation | Specification a bit-plane refers to all the bits of the same magnitude in all coefficients or samples. Could refer to a bit-plane in a component, tile￾component, code-block, region of interest, or other. bit stream: The actual sequence of bits resulting from the coding of a sequence of symbols. It does not include the marker segments in the main and tile headers. box: A building block defined by a unique type identifier and length. Some particular boxes may contain other boxes. box contents: Refers to the data wrapped within the box structure and stored within the DBox field within the Box data structure box type: Specifies the kind of information that shall be stored with the box and stored within the TBox field within the Box data structure. cell: An optional subdivision of a tile used for low-memory encoding and decoding. cleanup pass: A coding pass performed on a single bit-plane of a code-block of coefficients. It is the first pass and only coding pass for the first significant bit-plane; the third and the last pass of all the remaining bit-planes. codestream: A collection of one or more bit streams and associated (overhead) information required for their decoding and expansion into image data. Such overhead information is restricted to that required for expansion and may include, but is not limited to, marker segments indicating locations of particular bit streams, indicating transform, quantization and coding types, etc. code-block: A rectangular grouping of coefficients from the same sub-band of a tile-component. x x