IPTC-IIM

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(Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics }} IPTC is a metadata format used in some types of image files. == Format == Structurally, IPTC is a sequence of data b...")
 
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{{FormatInfo
 
{{FormatInfo
 
|formattype=electronic
 
|formattype=electronic
|subcat=Graphics
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|subcat=Metadata
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|released=1990
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|wikidata={{wikidata|Q776915}}
 
}}
 
}}
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'''IPTC-IIM''' is a metadata format used in some types of image files. It was intended to be used in the news media industry for pictures transmitted in conjunction with news stories, with accompanying captions and other information.
  
IPTC is a metadata format used in some types of image files.
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IIM stands for ''Information Interchange Model'', and IPTC for ''International Press Telecommunications Council'', the organization which developed this standard. The format is sometimes referred to as '''IPTC-NAA IIM''', because the Newspaper Association of America is also involved in developing these standards. The terms '''IPTC''' and '''IPTC metadata''' are sometimes used to refer to IPTC-IIM, though they have other meanings as well.
  
== Format ==
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The format has been incorporated into the broader [[IPTC Photo Metadata]] standard, and is now essentially a legacy serialization format for that standard.
  
Structurally, IPTC is a sequence of data blocks, which the specification calls "DataSets". Each DataSet contains a 1-byte "record number" and a 1-byte "DataSet number", which together indicate the type of data stored in that DataSet.
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== Format details ==
  
Take note of DataSet {1, 90} (Coded Character Set), which indicates the [[Character Encodings|character encoding]] used in other DataSets.
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IPTC-IIM is structured as a sequence of data blocks, which the specification calls "DataSets". Each DataSet contains a 1-byte "record number" and a 1-byte "DataSet number", which together indicate the type of data stored in that DataSet.
  
Multi-byte integers use [[Endianness|big-endian]] byte order.
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== Related formats ==
  
== Embedding ==
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* [[IPTC Photo Metadata]]
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* In a [[TIFF]] file, IPTC-IIM uses tag 33723.
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* IPTC-IIM may be embedded in [[Photoshop Image Resources]] metadata, with Resource ID 0x0404.
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* [[JPEG]] files often contain IPTC-IIM embedded in [[Photoshop Image Resources]].
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* [[AFCP]]
  
In a [[TIFF]] file, IPTC uses tag 33723.
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== Specifications ==
  
IPTC may be embedded in [[Photoshop Image Resources]] metadata, with Resource ID 0x0404.
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* [https://www.iptc.org/std/IIM/4.2/specification/IIMV4.2.pdf IPTC-IIM version 4.2]
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* [https://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf IPTC-IIM version 4.1]
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* [https://www.iptc.org/std/IIM/3.0/specification/IIMV3.PDF IPTC-IIM version 3]
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* [https://sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html ExifTool IPTC Tags]
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* [http://www.jpeg.org/public/wg1n2600.doc Request for UUID Registration of IPTC Information] (Embedding IPTC in [[JPEG 2000]])
  
[[JPEG]] files often contain IPTC embedded in [[Photoshop Image Resources]].
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== Software ==
  
== Specifications ==
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* [https://www.sno.phy.queensu.ca/~phil/exiftool/ ExifTool] (e.g. <code>exiftool -IPTC:All ...</code>)
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* [[Konvertor]]
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* [http://www.logipole.com Metadata++ supports EXIF, IPTC, XMP]
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* [http://libiptcdata.sourceforge.net/ libiptcdata]
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* [http://www.iptc.org/site/Photo_Metadata/Software_for_Rights_Test Software for Rights Test] i.e. which software supports embedding rights metadata.
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* [http://www.iptc.org/site/Photo_Metadata/Software_list/ Software supporting IPTC photo metadata standards IIM and "IPTC Core"]
  
* [http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf IPTC version 4.1]
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== Links ==
  
== References ==
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* [[Wikipedia: IPTC Information Interchange Model]]
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* [https://iptc.org/standards/iim/ IPTC: Information Interchange Model (IIM)]
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* [http://www.controlledvocabulary.com/imagedatabases/iptc_naa.html Some more info on IPTC/NAA formats and standards.]
  
* [http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html ExifTool IPTC Tags]
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[[Category:Graphics]]

Revision as of 19:11, 18 June 2020

File Format
Name IPTC-IIM
Ontology
Wikidata ID Q776915
Released 1990

IPTC-IIM is a metadata format used in some types of image files. It was intended to be used in the news media industry for pictures transmitted in conjunction with news stories, with accompanying captions and other information.

IIM stands for Information Interchange Model, and IPTC for International Press Telecommunications Council, the organization which developed this standard. The format is sometimes referred to as IPTC-NAA IIM, because the Newspaper Association of America is also involved in developing these standards. The terms IPTC and IPTC metadata are sometimes used to refer to IPTC-IIM, though they have other meanings as well.

The format has been incorporated into the broader IPTC Photo Metadata standard, and is now essentially a legacy serialization format for that standard.

Contents

Format details

IPTC-IIM is structured as a sequence of data blocks, which the specification calls "DataSets". Each DataSet contains a 1-byte "record number" and a 1-byte "DataSet number", which together indicate the type of data stored in that DataSet.

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