IPTC-IIM
From Just Solve the File Format Problem
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| − | + | [[IPTC]] is a metadata format used in some types of image files. | |
| − | IPTC is a metadata format used in some types of image files. | + | |
== Format == | == Format == | ||
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Multi-byte integers use [[Endianness|big-endian]] byte order. | Multi-byte integers use [[Endianness|big-endian]] byte order. | ||
| − | == | + | == Related formats == |
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| − | [[JPEG]] files often contain IPTC embedded in [[Photoshop Image Resources]]. | + | * In a [[TIFF]] file, IPTC uses tag 33723. |
| + | * IPTC may be embedded in [[Photoshop Image Resources]] metadata, with Resource ID 0x0404. | ||
| + | * [[JPEG]] files often contain IPTC embedded in [[Photoshop Image Resources]]. | ||
== Specifications == | == Specifications == | ||
* [http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf IPTC version 4.1] | * [http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf IPTC version 4.1] | ||
| + | * [http://www.jpeg.org/public/wg1n2600.doc Request for UUID Registration of IPTC Information] (Embedding IPTC in [[JPEG 2000]]) | ||
== References == | == References == | ||
Revision as of 01:42, 23 May 2014
IPTC is a metadata format used in some types of image files.Contents |
Format
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.
Take note of DataSet {1, 90} (Coded Character Set), which indicates the character encoding used in other DataSets.
Multi-byte integers use big-endian byte order.
Related formats
- In a TIFF file, IPTC uses tag 33723.
- IPTC may be embedded in Photoshop Image Resources metadata, with Resource ID 0x0404.
- JPEG files often contain IPTC embedded in Photoshop Image Resources.
Specifications
- IPTC version 4.1
- Request for UUID Registration of IPTC Information (Embedding IPTC in JPEG 2000)
References
- ExifTool IPTC Tags
- Software supporting IPTC photo metadata standards IIM and "IPTC Core"
- Software for Rights Test i.e. which software supports embedding rights metadata.
