Fri, 07 Jul 2006
EXIF & IPTC, photograph metadata // at 00:00
I've been importing my photos into Adobe Photoshop Album over the last
few years, entering titles and tagging the images. The titles go into
the images in the EXIF header, but the tags and other information is
held in Adobe's proprietary database. I can extract the
EXIF:ImageDescription with python or perl, and some of the other
image viewers will display it... some, but not all. My latest
experiments have been with Google's
picasa, or more specifically,
the beta version from
picasaweb.google.com, which allows
geocoding and has various tie-ins with GoogleEarth. Unfortunately it
seems that Picasa uses the
IPTC:Caption-Abstract as the source of
its title, so all the information I've entered via Photoshop Album is
A few quick searches and then, Phil Harvey's came exiftool to the rescue! Read and write every single possible type of metadata, at least every possible type I'm interested in at the moment.
exiftool -IPTC:Country-PrimaryLocationCode=AUS *JPG exiftool -IPTC:Country-PrimaryLocationName=Australia *JPG
I'm not really sure what to do with the postcodes (zipcodes), I think
I'll put them into
IPTC:Sub-Location, at least until someone sends
me a nasty-gram telling me the correct field to use.
PSAtools was next (the author no longer maintains it, but I found a copy archived elsewhere. Dump out the Photoshop Album catalogue into CSV and XML text files so I can play with it to my heart's content.