1、 Reference numberISO/IEC 15444-5:2003/Amd.1:2003(E)ISO/IEC 2003Information technology JPEG 2000 image coding system: Reference software AMENDMENT 1: Reference software for the JP2 file format Technologies de linformation Systme de codage dimage JPEG 2000: Logiciel de rfrence AMENDEMENT 1: Logiciel d
2、e rfrence pour le format du fichier JP2 Amendment 1:2004 toNational Standard of CanadaCAN/CSA-ISO/IEC 15444-5:04Amendment 1:2003 to International Standard ISO/IEC 15444-5:2003 has been adopted without modification(IDT) as Amendment 1:2004 to CAN/CSA-ISO/IEC 15444-5:04. This Amendment was reviewed by
3、 the CSATechnical Committee on Information Technology (TCIT) under the jurisdiction of the Strategic SteeringCommitte on Information Technology and deemed acceptable for use in Canada.December 2004Reference numberISO/IEC 15444-5:2003/Amd.1:2003(E)ISO/IEC 2003INTERNATIONAL STANDARD ISO/IEC15444-5Firs
4、t edition2003-11-15AMENDMENT 12003-12-15Information technology JPEG 2000 image coding system: Reference software AMENDMENT 1: Reference software for the JP2 file format Technologies de linformation Systme de codage dimage JPEG 2000: Logiciel de rfrence AMENDEMENT 1: Logiciel de rfrence pour le forma
5、t du fichier JP2 ISO/IEC 15444-5:2003/Amd.1:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the compute
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8、ntral Secretariat at the address given below. ISO/IEC 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
9、 ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 2003 All rights reservedISO/IEC 15444-5:2003/Amd.1:2003(E) ISO/IEC 200
10、3 All rights reserved iiiForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International
11、 Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IS
12、O and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical commi
13、ttee is to prepare International Standards. 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 least 75 % of the national bodies casting a vote. Attention is drawn to th
14、e possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Amendment 1 to ISO/IEC 15444-5:2003 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
15、Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information, in collaboration with ITU-T, but is not published as common text at this time. ISO/IEC 15444-5:2003/Amd.1:2003(E) ISO/IEC 2003 All rights reserved 1Information technology JPEG 2000 image coding system: Reference sof
16、tware AMENDMENT 1: Reference software for the JP2 file format In Clause 1, delete the fifth bullet point: “ - partial processing of a JP2 file to extract a JPEG 2000 codestream for decoding to a range of selected widely available image formats NOTE The reference software does not implement a conform
17、ing JP2 file reader. See section 9. “. In Clause 1, add the following text to the bulleted list: “ Processing of a JP2 file to extract a JPEG 2000 codestream for decoding and conversion to a range of selected widely available image formats The ability to extract metadata from a JP2 file, including t
18、he contents of the Image Header box and the colour space The decoding of JP2 files that use the Three-Component Matrix-Based form of the Restricted ICC method for the specification of colour space and the conversion of the decoded image data to the sRGB colour space for display, including limited up
19、sampling of all decoded components to the same resolution The decoding of JP2 files that use the Monochrome form of the Restricted ICC method for the specification of colour space and the conversion of the decoded image data to the sRGB based greyscale space as defined within the JP2 file format The
20、 decoding of JP2 files that use the sYCC colour space and the conversion of the decoded image data to the sRGB colour space for display, including upsampling of all decoded components to the same resolution “. In Clause 9, replace paragraphs 1, 2 and 3 with the following two paragraphs: “ Both sets
21、of reference software offer the capability to encode and decode codestreams and JP2 files that conform to the syntax defined in ITU-T Rec. T.800 | ISO/IEC 15444-1:2003. For transcoding to other image formats or for display, both sets of reference software allow the user to assume in the absence of a
22、dditional information that decoded codestream components are in the sRGB colour space or sRGB based greyscale. “. In Subclause 9.1, delete the informative note after bullet 1. In Subclause 9.2, delete the informative note after bullet 2. After paragraph 1 of A.1, delete the informative note. ISO/IEC
23、 15444-5:2003/Amd.1:2003(E) 2 ISO/IEC 2003 All rights reservedIn A.5, replace the following: “ 1) Partial support (non-conforming) for JPEG 2000 JP2 file (JP2) “ with “ 1) JPEG 2000 JP2 file (JP2) “. In paragraph 1 of B.1, replace the following: “ The decoder provides decompression of a JPEG 2000 co
24、destream into a number of image formats, and partial support (non-conforming) for the JP2 file format (see section 9.2). “ with “ The decoder provides decompression of a JPEG 2000 codestream into a number of image formats, and support for the JP2 file format. “. After paragraph 1 of B.1, delete the informative note. Replace the package files, JASPER.ZIP and JJ2000.ZIP, in ISO/IEC 15444-5 with the software package files accompanying this document. ISO/IEC 15444-5:2003/Amd.1:2003(E) ICS 35.040 ISO/IEC 2003 All rights reserved
