http://dltj.org/article/j2kig-minutes/ We're Disrupted, We're Librarians, and We're Not Going to Take It Anymore Wed, 23 May 2012 16:01:37 +0000 hourly 1 http://dltj.org/article/j2kig-minutes/comment-page-1/#comment-96981 JPEG 2000 comme format de préservation - Politiques, lignes directrices et outils sur le matériel numérique - Initiatives numériques de BAC - Bibliothèque et Archives Canada Mon, 01 Nov 2010 10:28:19 +0000 http://dltj.org/2006/06/j2kig-minutes/#comment-96981 <!--%kramer-ref-pre%-->[...] "Minutes of the ALA/LITA JPEG2000 for Libraries and Archives interest group meeting"http://dltj.org/article/j2kig-minutes/ [...]<!--%kramer-ref-post%--> [...] "Minutes of the ALA/LITA JPEG2000 for Libraries and Archives interest group meeting"http://dltj.org/article/j2kig-minutes/ [...]

]]> http://dltj.org/article/j2kig-minutes/comment-page-1/#comment-12844 JPEG 2000 Part 1 (Core) jp2 File Format Tue, 06 Mar 2007 16:34:11 +0000 http://dltj.org/2006/06/j2kig-minutes/#comment-12844 <!--%kramer-ref-pre%-->[...] Implementations of JPEG 2000 have been increasing steadily during 2005 and 2006. Michael Gormish, as part of his Gormish Notes on JPEG2000, now maintains a small "wiki" for his tracking of JPEG2000 adoption [http://www.crc.ricoh.com/~gormish/jpeg2000adoption.html], rather than a single page, because developments to record are increasingly frequent. Most image manipulation programs and software libraries can now read and write JP2 files. JPEG2000 encoder chips are available, e.g., from Analog Devices and ALMA Technologies. Software encoders designed for general DSP (digital signal processing) chips are available from other manufacturers, e.g., Texas Instruments. Examples of significant adoption of JPEG2000 in commercial or government application sectors include: the Digital Cinema Initiative (see Digital Cinema Initiative Package (DCP), Version 1.0); use by the High Resolution Imaging Science Experiment (HiRISE) flying on board NASA's MARS Reconnaissance Orbiter mission; and use in the stock photography service AbsolutVision. Use of JPEG 2000 in medical and geospatial imaging applications is growing steadily. For example, in late 2006, lossless JPEG 2000 was proposed as the standard for compressed imagery in the Western Australia Land Information System in a report that considers adoption in GIS communitities in some detail [http://www.walis.wa.gov.au/projects/JPEG2000/JP2K_Report_for_DLI_v1.0.pdf]. Security cameras that use JPEG2000 for compression are on the market, e.g., from Sanyo. Another specialist camera system with built-in JPEG2000, from Air Resource Specialists, Inc. is for monitoring air-quality. Many cultural heritage institutions, including the Library of Congress, that had used MrSID to support zoom views of large images such as maps, have migrated to using JPEG 2000 as a service format. Minutes of the ALA/LITA JPEG2000 Interest Group meeting in June 2006 indicated usage by several participants: Western Michigan University is using JPEG2000 for access to digitized manuscripts; LexisNexis is using JPEG2000 in the maps portion of the U.S. Serials Set digitization program; the Smithsonian Libraries has started converting archival TIFFs to JPEG2000 and is considering use of the standard in the Biodiversity Heritage Library project. There was also discussion of the state of support for JPEG2000 in software systems used by libraries. Insight (Luna) ContentDM (DiMeMa), and Digitool (Ex Libris) can now use JPEG2000 and have deployed server-side transformation to deliver an image to the user within a regular web-browser. In early 2007, some commentators on the Web called attention to the fact that JPEG 2000 encoding is not being built into camera chips nor is JPEG 2000 decoding native to Web browsers. This has led them to compare the adoption of the format in unfavorable terms to JPEG_DCT, the earlier JPEG codec, which is native to virtually all digital cameras and browsers. Earlier indications of adoption were: The Guide to the Practical Implementation of JPEG 2000 (2003, see Useful references below), reports that "Some of the aerial photography on the street-mapping web site MapQuest.com is provided by a JPEG 2000 back-end system, chosen for its ability to extract small regions from very large images at high speed. Yahoo! Messenger, an instant-messaging client with video capabilities, also uses JPEG 2000, to achieve high compression and hence higher resolution and frame-rate. In both cases, the use of JPEG 2000 is not typically manifest to the end-user." See also Peter Murray's presentation Adoption of JPEG 2000 by Libraries and Archives.   Licensing and patent claimsLicensing is associated with the encoding; see J2K_C. TransparencySee J2K_C Self-documentationA small set of metadata is required: basic image data (height, width, number of components, bit-depth); color specification (see notes on color maintenance below), and a flag indicating the presence or absence of intellectual property information. This may be supplemented by optional information, e.g., capture or dispay resolution (relating pixel size to physical size) and by data presented in three optional boxes: (1) a box for XML data (specific recommendations regarding XML are provided in Part 2 of the standard and pertain to JPX but may be used in JP2 as well), (2) an IPR box (see technical protection considerations just below), and (3) a UUID box which provides for an object identifier or identifier-references to other digital objects (described by one commentator as providing a generic mechanism for extending the file format to include application-specific data). External dependenciesNone Technical protection considerationsLike the rest of the members of the JPEG 2000 file format family, JP2_FF provides an IPR box for rights management information that may be used as inputs to access management systems. [...]<!--%kramer-ref-post%--> [...] Implementations of JPEG 2000 have been increasing steadily during 2005 and 2006. Michael Gormish, as part of his Gormish Notes on JPEG2000, now maintains a small “wiki” for his tracking of JPEG2000 adoption [http://www.crc.ricoh.com/~gormish/jpeg2000adoption.html], rather than a single page, because developments to record are increasingly frequent. Most image manipulation programs and software libraries can now read and write JP2 files. JPEG2000 encoder chips are available, e.g., from Analog Devices and ALMA Technologies. Software encoders designed for general DSP (digital signal processing) chips are available from other manufacturers, e.g., Texas Instruments. Examples of significant adoption of JPEG2000 in commercial or government application sectors include: the Digital Cinema Initiative (see Digital Cinema Initiative Package (DCP), Version 1.0); use by the High Resolution Imaging Science Experiment (HiRISE) flying on board NASA’s MARS Reconnaissance Orbiter mission; and use in the stock photography service AbsolutVision. Use of JPEG 2000 in medical and geospatial imaging applications is growing steadily. For example, in late 2006, lossless JPEG 2000 was proposed as the standard for compressed imagery in the Western Australia Land Information System in a report that considers adoption in GIS communitities in some detail [http://www.walis.wa.gov.au/projects/JPEG2000/JP2K_Report_for_DLI_v1.0.pdf]. Security cameras that use JPEG2000 for compression are on the market, e.g., from Sanyo. Another specialist camera system with built-in JPEG2000, from Air Resource Specialists, Inc. is for monitoring air-quality. Many cultural heritage institutions, including the Library of Congress, that had used MrSID to support zoom views of large images such as maps, have migrated to using JPEG 2000 as a service format. Minutes of the ALA/LITA JPEG2000 Interest Group meeting in June 2006 indicated usage by several participants: Western Michigan University is using JPEG2000 for access to digitized manuscripts; LexisNexis is using JPEG2000 in the maps portion of the U.S. Serials Set digitization program; the Smithsonian Libraries has started converting archival TIFFs to JPEG2000 and is considering use of the standard in the Biodiversity Heritage Library project. There was also discussion of the state of support for JPEG2000 in software systems used by libraries. Insight (Luna) ContentDM (DiMeMa), and Digitool (Ex Libris) can now use JPEG2000 and have deployed server-side transformation to deliver an image to the user within a regular web-browser. In early 2007, some commentators on the Web called attention to the fact that JPEG 2000 encoding is not being built into camera chips nor is JPEG 2000 decoding native to Web browsers. This has led them to compare the adoption of the format in unfavorable terms to JPEG_DCT, the earlier JPEG codec, which is native to virtually all digital cameras and browsers. Earlier indications of adoption were: The Guide to the Practical Implementation of JPEG 2000 (2003, see Useful references below), reports that “Some of the aerial photography on the street-mapping web site MapQuest.com is provided by a JPEG 2000 back-end system, chosen for its ability to extract small regions from very large images at high speed. Yahoo! Messenger, an instant-messaging client with video capabilities, also uses JPEG 2000, to achieve high compression and hence higher resolution and frame-rate. In both cases, the use of JPEG 2000 is not typically manifest to the end-user.” See also Peter Murray’s presentation Adoption of JPEG 2000 by Libraries and Archives.   Licensing and patent claimsLicensing is associated with the encoding; see J2K_C. TransparencySee J2K_C Self-documentationA small set of metadata is required: basic image data (height, width, number of components, bit-depth); color specification (see notes on color maintenance below), and a flag indicating the presence or absence of intellectual property information. This may be supplemented by optional information, e.g., capture or dispay resolution (relating pixel size to physical size) and by data presented in three optional boxes: (1) a box for XML data (specific recommendations regarding XML are provided in Part 2 of the standard and pertain to JPX but may be used in JP2 as well), (2) an IPR box (see technical protection considerations just below), and (3) a UUID box which provides for an object identifier or identifier-references to other digital objects (described by one commentator as providing a generic mechanism for extending the file format to include application-specific data). External dependenciesNone Technical protection considerationsLike the rest of the members of the JPEG 2000 file format family, JP2_FF provides an IPR box for rights management information that may be used as inputs to access management systems. [...]

]]> http://dltj.org/article/j2kig-minutes/comment-page-1/#comment-1402 LITA Blog » Blog Archive » Top Technology Trends, NISO’s “Identifiers Roundup”, Electronic Resource Management Systems in Consortia, and JPEG2000 in Libraries and Archives Wed, 28 Jun 2006 17:38:10 +0000 http://dltj.org/2006/06/j2kig-minutes/#comment-1402 [...] Minutes of the ALA/LITA JPEG2000 for Libraries and Archives interest group meeting [...] [...] Minutes of the ALA/LITA JPEG2000 for Libraries and Archives interest group meeting [...]

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