1、Information technology Digital compression and coding of continuous-tone still images: Extensions AMENDMENT 1: Provisions to allow registration of new compression types and versions in the SPIFF headerAmendment 1:2013 (IDT) toNational Standard of CanadaCAN/CSA-ISO/IEC 10918-3-00(ISO/IEC 10918-3:1997
2、, IDT)NOT FOR RESALE. / PUBLICATION NON DESTINE LA REVENTE.Standards Update ServiceAmendment 1:2013 toCAN/CSA-ISO/IEC 10918-3-00January 2013Title:Information technology Digi tal compression and coding of continuous-tone still images: Extensions AMENDMENT 1: Provisions to allow registration of new co
3、mpression types and versions in the SPIFF headerPagination:4 pages (iii preliminary and 1 text)To register for e-mail notification about any updates to this publicationgo to shop.csa.caclick on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2422240.If
4、 you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups policy on privacy at csagroup.org/legal to find out how we protect your personal information.ReferencenumberISO/IEC10918-3:1997/Amd.1:1999(E)ISO/IEC1999INTERNATIONALSTANDARDISO/IEC10918-3Firstedition
5、1997-05-01AMENDMENT 11999-12-01Information technology Digitalcompression and coding ofcontinuous-tone still images: ExtensionsAMENDMENT1:ProvisionstoallowregistrationofnewcompressiontypesandversionsintheSPIFFheaderTechnologiesdelinformationCompressionetcodagenumriquesdesimagesfixesmodelcontinu:Exten
6、sionsAMENDEMENT1:DispositionspourpermettrelenregistrementdetypesetdeversionsdenouvellecompressiondanslattireSPIFFISO/IEC 10918-3:1997/Amd.1:1999(E)PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall notb
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11、1:2013 to CAN/CSA-ISO/IEC 10918-3-00ISO/IEC 10918-3:1997/Amd.1:1999(E)ISO/IEC1999Allrights reserved iiiForewordISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)form the specialized system for worldwide standardization. National bodies th
12、at are members of ISO or IECparticipate in the development of International Standards through technical committees established by therespective organization to deal with particular fields of technical activity. ISO and IEC technical committeescollaborate in fields of mutual interest. Other internati
13、onal organizations, governmental and non-governmental, inliaisonwithISOandIEC,alsotakepartinthework.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3.In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IECJTC1.
14、Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthenationalbodiescastingavote.Attention is drawn to the possibility that some of the elements of this Amendment may be
15、 the subject of patentrights.ISOandIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Amendment1 to International Standard ISO/IEC10918-3:1997 was prepared by Joint Technical CommitteeISO/IECJTC1,Informationtechnology,SubcommitteeSC29,Codingofaudio,picture,multimediaandhypermediainfo
16、rmation,incollaborationwithITU-T.TheidenticaltextispublishedasITU-T Rec.T.84/Amd.1.Amendment 1:2013 to CAN/CSA-ISO/IEC 10918-3-00ISO/IEC 10918-3 : 1997/Amd.1 : 1999 (E)ITU-T Rec. T.84 (1996)/Amd.1 (1999 E) 1INTERNATIONAL STANDARDISO/IEC 10918-3 : 1997/Amd.1 : 1999 (E)ITU-T Rec. T.84 (1996)/Amd.1 (19
17、99 E)ITU-T RECOMMENDATIONINFORMATION TECHNOLOGY DIGITAL COMPRESSION AND CODINGOF CONTINUOUS-TONE STILL IMAGES: EXTENSIONSAMENDMENT 1Provisions to allow registration of new compression typesand versions in the SPIFF header1) Subclause F.2.1Replace the parameter definition of VERS with:VERS: This para
18、meter identifies the version number of this SPIFF specification that the file complies. The parameter isdefined as a two-byte integer with the most significant byte containing the major revision number and the leastsignificant byte containing a minor revision number.In order to make this file format
19、 as flexible as possible, a provision has been made that allows new parameter values inthe header of a SPIFF file which are not specified in this Recommendation | International Standard. The value of VERSwill increase when these new parameter values are present. The method of adding these new parame
20、ter values to thisRecommendation | International Standard and the conditions which apply when these new values are found is specifiedin F.2.1.2.2) Subclause F.2.1Replace Compression type of the parameter definition of C:“Compression type Specifies the compression algorithm used to compress the image
21、 data:“with:Compression type - Specifies the compression algorithm used to compress the image data. Additional new parametersare specified via the registration process defined in ITU-T Rec. T.86 | ISO/IEC 10918-4 to support new types ofcompressions, such as JPEG-LS (ISO/IEC 14495 to be published) an
22、d Multicomponent JPEG (ISO/IEC 14493 to bepublished).3) New subclause F.2.1.2Add a new subclause F.2.1.2:F.2.1.2 Addition of new header parameter valuesThese shall only be added through a registration procedure specified in ITU-T Rec. T.86 | ISO/IEC 10918-4, or byformal amendment or revision of this
23、 Recommendation | International Standard. This registration procedure specifies anew and increased value for the parameter VERS on each occasion that a registration is accepted by the registrationauthority responsible for registration in accordance with ITU-T Rec. T.86 | ISO/IEC 10918-4.Encoders are
24、 encouraged to ensure that the value of VERS used is the lowest version that includes the informationrequired to understand the file format.Amendment 1:2013 to CAN/CSA-ISO/IEC 10918-3-00ISO/IEC 10918-3:1997/Amd.1:1999(E)ICS 35.040ISO/IEC1999Allrights reservedCopyright NoticeThis Amendment to the Int
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