International Press Telecommunications Council
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The International Press Telecommunications Council, based in Windsor, United Kingdom, is a consortium of the world's major news agencies and news industry vendors. It develops and maintains technical standards for improved news exchange that are used by virtually every major news organization in the world.
Currently 64 companies and organisations from the news industry are members of the IPTC.
The IPTC was established in 1965 by a group of news organisations including the Alliance Européenne des Agences de Presse, ANPA (now NAA), FIEJ (now WAN) and the North American News Agencies (a joint committee of Associated Press, Canadian Press and United Press International) to safeguard the telecommunications interests of the world's press.
Since the late 1970s IPTC's activities have primarily focussed on developing and publishing industry standards for the interchange of news data.
In particular, the IPTC defined a set of metadata attributes that can be applied to images. These were defined originally in 1979, and revised significantly in 1991 to be the "Information Interchange Model" (IIM), but the concept really advanced in 1994 when Adobe defined a specification for actually embedding the metadata into digital image files - known as "IPTC headers." IPTC Headers can be embedded into JPEG/Exif or TIFF formatted image files.
In 2001, Adobe introduced something called "Extensible Metadata Platform" (XMP), which is an XML schema for the same types of metadata as IPTC, but is based on XML/RDF, and is therefore inherently extensible. The effort spawned a collaboration with the IPTC itself, eventually producing the "IPTC Core Schema for XMP," which merges the two approaches to embedded metadata. The XMP specification describes techniques for how to embed the metadata in JPEG, TIFF, JPEG2000, GIF, PNG, HTML, PostScript, PDF, SVG, Adobe Illustrator, and DNG files. Recent versions of all the main Adobe software products, (Photoshop, Illustrator, Acrobat, Framemaker, etc.) support XMP, as do an increasing number of third-party tools.
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[edit] IPTC Members
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- The International Press Telecommunications Council
- IPTC standards described using XMP
- NewsML
- IPTC Recommendation 7901 - The Text Transmission Format
- The IPTC-NAA standards
- NAA/IPTC Header Codes
- Guidelines for adding descriptive IPTC style information (captions and keywords) - from ControlledVocabulary.com
- Guidance and techniques for tagging and keywording images - Article by Third Light Ltd.
- Software supporting IPTC photo metadata standards IIM and "IPTC Core"
[edit] Manipulation (read/write support)
- libiptcdata
- ExifTool Perl module
- Exiv2 (C++) Exif and Iptc metadata manipulation library and tools
- PHP function: iptcparse()
- PHP function: iptcembed()
- iTag - free software to geotag and edit IPTC fields in digital photos
- Kalimages - IPTC/XMP editor for jpeg image files indexing digital photos based on metadata
- IDimager - Digital Image Manager with IPTC-IIM and IPTC-Core (XMP) Support
- Mapivi - Open-source and cross-platform picture manager with IPTC support
