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Difference between revisions of "Exif"

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The '''Exchangeable image file format''' (Exif) is an image [[file format]] which adds lots of [[metadata]] to existing image formats, mainly [[JPEG]].
 
The '''Exchangeable image file format''' (Exif) is an image [[file format]] which adds lots of [[metadata]] to existing image formats, mainly [[JPEG]].
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To read the Date/Time tag do:
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  exif --tag=0x132 filename.jpg      (reveals Date & Tag)
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  exif --tag=0x9003 filename.jpg      (reveals Date and Time (original))
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  exif --tag=0x9004 filename.jpg      (reveals Date and Time (digitized))
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To set the Date/Time tag:
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  exif  --tag=0x132 --set-value="1975:01:01 12:01:01" --ifd=0 filename.jpg
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For tools that extract Exif meta data look here - [[Document_Metadata_Extraction#Images]]
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== External Links ==
 
== External Links ==
  
 
* [http://exif.org/ exif.org]
 
* [http://exif.org/ exif.org]
* [http://www.digicamsoft.com/exif22/exif22/html/exif22_1.htm Exif 2.2 specification]
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* [[Media:Exif2-2.pdf|Exif 2.2 specification]]
 
* [http://en.wikipedia.org/wiki/Exif Exif] article in the Wikipedia.
 
* [http://en.wikipedia.org/wiki/Exif Exif] article in the Wikipedia.

Latest revision as of 20:01, 26 October 2009

The Exchangeable image file format (Exif) is an image file format which adds lots of metadata to existing image formats, mainly JPEG.

To read the Date/Time tag do:

 exif --tag=0x132 filename.jpg       (reveals Date & Tag) 
 exif --tag=0x9003 filename.jpg      (reveals Date and Time (original))
 exif --tag=0x9004 filename.jpg      (reveals Date and Time (digitized))

To set the Date/Time tag:

 exif  --tag=0x132 --set-value="1975:01:01 12:01:01" --ifd=0 filename.jpg

For tools that extract Exif meta data look here - Document_Metadata_Extraction#Images


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