1、BRITISH STANDARD BS ISO/IEC 10918-4:1999 Information technology Digital compression and coding of continuous-tone still images Part 4: Registration of JPEG profiles, SPIFF profiles, SPIFF tags, SPIFF colour spaces, APPn markers, SPIFF compression types, and Registration Authorities (REGAUT) ICS 35.0
2、40BSISO/IEC 10918-4:1999 This British Standard, having been prepared under the directionof the DISC Board, waspublished under the authorityof the Standards Boardand comes into effect on 15October1999 BSI 04-2000 ISBN 0 580 29994 5 National foreword This British Standard reproduces verbatim ISO/IEC10
3、918-4:1999 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/37, Coding of picture, audio, multimedia and hypermedia information, which has the responsibility to: aid enquirers to understand the text; present to the respon
4、sible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its se
5、cretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standa
6、rds Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of page
7、s This document comprises a front cover, an inside front cover, pagesi andii, theISO/IEC title page, pagesii toiv, pages1 to28 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside f
8、ront cover. Amendments issued since publication Amd. No. Date CommentsBSISO/IEC 10918-4:1999 BSI 04-2000 i Contents Page National foreword Inside front cover Foreword iv Text of ISO/IEC 10918-4 1ii blankBSISO/IEC 10918-4:1999 ii BSI 04-2000 Contents Page Foreword iv 1 Scope 1 2 Normative references
9、1 2.1 Identical ITU-T Recommendations|International Standards 1 2.2 Additional references 1 3 Definitions, abbreviations, and symbols 2 3.1 Definitions 2 3.2 Abbreviations and acronyms 3 3.3 Symbols 3 4 General 3 4.1 JPEG and SPIFF profiles (see ITU-T Rec. T.84| ISO/IEC10918-3, F.2.1) 3 4.1.1 Purpos
10、e of a profile 4 4.1.2 Criteria for acceptance of a profile 4 4.1.3 Contents of the submission 4 4.1.4 Normative section 4 4.2 SPIFF tags (see ITU-T Rec. T.84|ISO/IEC10918-3, F.2.2) 5 4.2.1 Purpose of a SPIFF tag 5 4.2.2 Criteria 5 4.2.3 Contents of the submission 5 4.3 SPIFF colour space (see ITU-T
11、 Rec. T.84|ISO/IEC10918-3, F.2.1.1) 5 4.3.1 Purpose of a SPIFF colour space 5 4.3.2 Criteria 5 4.3.3 Contents of the submission 6 4.4 APPn marker (see CCITT Rec. T.81|ISO/IEC10918-1, B.2.4.6) 6 4.4.1 Purpose of an APPn marker 6 4.4.2 Criteria 6 4.4.3 Contents of the submission 6 4.5 SPIFF compressio
12、n type (see ITU-T Rec.T.84| ISO/IEC10918-3, F.2.1) 7 4.5.1 Purpose of SPIFF compression type registration 7 4.5.2 Criteria 7 4.5.3 Contents of the submission 7 4.6 Registration Authority (see ITU-TRec.T.84| ISO/IEC10918-3, F.2.3.2.13) 7 4.6.1 Purpose of Image Registration Authority (REGAUT) IDs 8 4.
13、6.2 Criteria 8 4.6.3 Contents of the submission 8 5 Submission, review, and appeal process 9 5.1 Submission process 9 5.2 Review process 9 5.3 Notification and appeal process 10 Annex A JPEG marker and SPIFF tag usage tables 12 Annex B Examples of registered PTSMCR items 13 B.1 Example of a JPEG pro
14、file: NITFS Lossless JPEG Profile 13 B.1.1 Normative description 13 B.1.2 Informative description 24 B.2 Example of SPIFF tag 24 B.2.1 Normative description 24 B.2.2 Origin of request 24BSISO/IEC 10918-4:1999 BSI 04-2000 iii Page B.2.3 Typical application 25 B.2.4 Content 25 B.3 Example of a SPIFF c
15、olour space 25 B.3.1 Origin of request 25 B.3.2 Typical application 25 B.4 Example of APPn markers 25 B.4.1 Example 1 25 B.4.2 Example 2 27 B.5 Example of compression type 27 B.5.1 Normative description 27 B.5.2 Origin of request 27 B.5.3 Typical application 28 B.5.4 Content 28 B.6 Example of REGAUT
16、 application 28 B.6.1 Normative description 28 B.6.2 Origin of request 28 B.6.3 Typical application 28 B.6.4 Content 28 Annex C Registered marker information 28 Figure 4-1 Syntax of the APPn markers 6 Figure 4-2 License Plate concept 7 Figure 5-1 PTSMCR registration process 11 Figure B.1-1 NITF file
17、 structure 21 Figure B.1-2 NITF single block file structure (IMODE = B or P) 22 Figure B.1-3 NITF multiple block file structure (IMODE = B or P) 23 Figure B.1-4 NITF multiple block file structure (IMODE = S) 23 Table A.1 Marker usage 12 Table A.2 Marker usage 13 Table A.3 SPIFF header and tags usage
18、 13 Table B.1-1 Marker usage 16 Table B.1-2 Marker usage 17 Table B.1-3 SPIFF header and tags usage 17 Table B.1-4 NITF APP 6application data segment 19 Table B.1-5 APP 6and DHT lengths 20 Table B.1-6 NITF APP 6application data segment (second type) 20 Table B.1-7 NITF APP 7directory segments 21 Tab
19、le B.4-1 APP6 NITFS application data segment marker 26 Table B.4-2 APP6 NITFS application data segment marker 27BSISO/IEC 10918-4:1999 iv BSI 04-2000 Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system
20、for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees colla
21、borate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part3. In the field of information tec
22、hnology, ISO and IEC have established a joint technical committee, ISO/IECJTC1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least75% of the national bodies castin
23、g a vote. Attention is drawn to the possibility that some of the elements of this part of ISO/IEC10918 may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. International Standard ISO/IEC10918-4 was prepared by Joint Technical C
24、ommittee ISO/IECJTC1, Information technology, SubcommitteeSC29, Coding of audio, picture, multimedia and hypermedia information, in collaboration with ITU-T. The identical text is published as ITU-T RecommendationT.86. ISO/IEC10918 consists of the following parts, under the general title Information
25、 technology Digital compression and coding of continuous-tone still images: Part 1: Requirements and guidelines; Part 2: Compliance testing; Part 3: Extensions; Part 4: Registration of JPEG profiles, SPIFF profiles, SPIFF tags, SPIFF colour spaces, APPn markers, SPIFF compression types and Registrat
26、ion Authorities (REGAUT); Part 5: MHEG subset for base level implementation. Annex A toAnnex C of this part of ISO/IEC10918 are for information only. Please note that the following definitions were omitted in subclause3.2 “Abbreviations and Acronyms”: JBIG Joint Bi-level Image experts Group JPEG Joi
27、nt Photographic Experts Group PTSMCR Profiles, Tags, colour Spaces, Markers, Compression type and REGAUT REGAUT REGistration AUThority SPIFF Still Picture Interchange File FormatBSISO/IEC 10918-4:1999 BSI 04-2000 1 1 Scope This Recommendation|International Standard provides for the unique registrati
28、on of JPEG and SPIFF Profiles, SPIFF Tags, SPIFF colour Spaces, application specific Markers, SPIFF Compression types and images Registration authorities as defined in the CCITT Rec.T.81|ISO/IEC10918-1 and ITU-TRec.T.84|ISO/IEC10918-3. Unless otherwise specified, (P)rofiles, (T)ags, colour (S)paces,
29、 (M)arkers, (C)ompression types and image (R)egistration authorities will be referred to as PTSMCR items. ISO/IECJTC1 SC29 will delegate to a designated Authority the role to collect, study, approve, register and disseminate the relevant information to allow for the customization of JPEG standard. T
30、he following table gives an overview of the main issues about registration of PTSMCR items. 2 Normative references The following Recommendations and International Standards contain provisions which, through references in this text, constitute provisions of this Recommendation|International Standard.
31、 At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation|International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommenda
32、tions and Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations. 2.1 Identical ITU-T Recommendations|International Standards CCITT
33、 Recommendation T.81 (1992)|ISO/IEC10918-1:1994, Information technology Digitalcompression and coding of continuous-tone still images: Requirements and guidelines. ITU-T Recommendation T.82 (1993)|ISO/IEC11544:1993, Information technology Codedrepresentation of picture and audio information Progress
34、ive bi-level image compression plusTechnical Corrigendum1 (1995). ITU-T Recommendation T.83 (1994)|ISO/IEC10918-2:1995, Information technology Digitalcompression and coding of continuous-tone still images: Compliance testing. ITU-T Recommendation T.84 (1996)|ISO/IEC10918-3:1997, Information technolo
35、gy Digitalcompression and coding of continuous-tone still images: Extensions. 2.2 Additional references ITU-T Recommendation T.85 (1995), Application profile for Recommendation T.82 Progressive bi-level image compression (JBIG coding scheme) for facsimile apparatus. ITU-T Recommendation T.87 (1998)|
36、ISO/IEC14495-1:1998, Information technology Lossless and near-lossless compression of continuous-tone still images Baseline. ISO 3166-1:1997, Codes for the representation of names of countries and their subdivisions Part1: Country codes. ISO 8601:1988, Data elements and interchange formats Informati
37、on interchange Representation of dates and times. Designation Origin of requests Qty range Notes P Profile std. implementers units fundamental issue T index Tag application field tens various contents (Note 1) S colour Space std implementers units technical issue M Marker std implementers units rest
38、ricted use C Compression conceptor units standards use R REGAUT institutions thousands through National Bodies (Note 2) NOTE 1Tags can create a language problem, and this Recommendation|International Standard stipulates that only the English version of the content can be registered to avoid misunder
39、standing. The National Bodies should provide translation facilities for registrants in their countries. NOTE 2Due to the large number of potential applicants, the PTSMCR Authority delegates the National Bodies to register new REGAUTs. This disposition solves the language and the legal problems raise
40、d from different countries.BSISO/IEC 10918-4:1999 2 BSI 04-2000 ISO 8859-1:1987, Information processing 8-bit single-byte coded graphic character sets Part1: Latin alphabet No.1. ISO 8859-2:1987, Information processing 8-bit single-byte coded graphic character sets Part2: Latin alphabet No.2. ISO 88
41、59-3:1988, Information processing 8-bit single-byte coded graphic character sets Part3: Latin alphabet No.3. ISO 8859-4:1988, Information processing 8-bit single-byte coded graphic character sets Part4: Latin alphabet No.4. ISO 8859-5:1988, Information processing 8-bit single-byte coded graphic char
42、acter sets Part5: Latin/Cyrillic alphabet. ISO 8859-6:1987, Information processing 8-bit single-byte coded graphic character sets Part6: Latin/Arabic alphabet. ISO 8859-7:1987, Information processing 8-bit single-byte coded graphic character sets Part7: Latin/Greek alphabet. ISO 8859-8:1988, Informa
43、tion processing 8-bit single-byte coded graphic character sets Part8: Latin/Hebrew alphabet. ISO/IEC 8859-9:1989, Information processing 8-bit single-byte coded graphic character sets Part9: Latin alphabet No.5. ISO/IEC 8859-10:1992, Information technology 8-bit single-byte coded graphic character s
44、ets Part10: Latin alphabet No.6. ISO/IEC 10646-1:1993, Information technology Universal Multiple-Octet Coded Character Set (UCS) Part1: Architecture and Basic Multilingual Plane. CIE 1976 (L* a* b*) space, CIE Publication No.15.2, Colorimetry, 2nd Ed. (1986). 3 Definitions, abbreviations, and symbol
45、s 3.1 Definitions In addition to the definitions used in CCITTRec.T.81|ISO/IEC10918-1 and ITU-TRec.T.84| ISO/IEC10918-3, the following definitions used in this Recommendation|International Standard are listed below. 3.1.1 license plate (LP) a unique identifier, appearing in the SPIFF directory, deli
46、vered by a REGAUT in compliance with ITU-T Rec.T.84|ISO/IEC10918-3 containing COPIR_ID, REGCON, REGAUT and REGID. The length is8+64bits 3.1.2 PROFILE a specific set of capabilities, parameter values or ranges, and optionally file format. A specific implementation of the encoding processes in CCITT R
47、ec.T.81|ISO/IEC10918-1 and ITU-TRec.T.84|ISO/IEC10918-3 3.1.3 PTSMCR Authority ISO/IEC JTC1/SC29/WG1 or its delegate is the PTSMCR Authority 3.1.4 PTSMCR Registration official unique listing of a profile, tag, colour space, marker, compression type, or image Registration Authorities (REGAUT) 3.1.5 j
48、oint bi-level image experts group (JBIG) the joint ISO/ITU committee responsible for developing standards for bi-level image coding. It also refers to the standard produced by this committee: ITU-TRec.T.82|ISO/IEC11544BSISO/IEC 10918-4:1999 BSI 04-2000 3 3.1.6 joint photographic experts group (JPEG)
49、 the joint ISO/ITU committee responsible for developing standards for continuous tone still picture coding. It also refers to the standards produced by this committee: CCITTRec.T.81|ISO/IEC10918-1, ITU-TT.83|ISO/IEC10918-2, and ITU-TRec.T.84|ISO/IEC10918-3 3.1.7 REGistration AUThority (REGAUT) an identifier specifying a particular registration authority as designated by ISO/IECJTC1/SC29 3.1.8 still picture interch
