History
Since the late 1970s the IPTC’s activities have primarily focused on developing and publishing industry standards for the interchange of news. The first standard, IPTC 7901, bridged the eras of teleprinters and computers.
In the late 1980s development began on a standard (the Information Interchange Model) that would be designed to best work with computerized news editing systems.
In particular, the IPTC defined a set of IIM metadata attributes that can be applied to images. These were defined originally in 1979, and revised significantly in 1991 to be part of the IIM, but the concept really advanced in 1994 when Adobe Systems defined a specification for actually embedding the metadata into digital image files — yielding "IPTC headers."
(Adobe adopted the IPTC IIM metadata definitions, but not the overall IIM data structure. Photos that contain IPTC Headers appear in all other respects to be normal JPEG or TIFF images; software that does not recognize IPTC Headers will simply ignore the metadata.)
In 2001, Adobe introduced "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, eventually producing the "IPTC Core Schema for XMP", which merges the two approaches to embedded metadata. The XMP specification describes techniques for embedding 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.
In June 2007, IPTC in cooperation with IFRA held the First International Photo Metadata conference, titled "Working towards a seamless photo workflow" to a standing room only crowd (over 130 attendees), prior to the CEPIC Congress, in Florence, Italy. A similar conference was held in Malta in June 2008.
The IPTC Photo Metadata working group released a white paper, which figured prominently at this event. The conference keynote was given by Andreas Trampe, head of the photo desk of Stern. Other speakers included photographers such as David Riecks and Peter Krogh, photo and news agencies such as Reuters; representatives of standards bodies such as PLUS, IPTC, and IFRA; as well as spokespersons from the photo metadata implementers side, such as Adobe Systems, Apple Inc., Canon Inc., FotoWare AS, Hasselblad, and Microsoft.
The electronic presentations given by most of the speakers are available online from the Photo Metadata Conference website including a link to a report on each of the speakers' talks
Read more about this topic: IPTC Information Interchange Model
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