[Digikam-users] Searching on IPTC core properties

Gilles Caulier caulier.gilles at gmail.com
Sun May 18 19:36:07 BST 2008

2008/5/18 Philippe Arnone <philippe at arnone.org>:
> Le Monday 12 May 2008 20:47:19 Marcel Wiesweg, vous avez écrit :
>> Hi,
>> in the past there has been demand on searching for certain metadata
>> properties, mostly those in IPTC Core, but Dublin Core as well. (see below
>> for a list)
>> I am not familiar with the way you are using such properties, so it's
>> difficult to find out what exactly we should provide.
>> This means I am looking for:
>> - Use Cases and Use Scenarios for working with such properties, searching
>> in particular
>> - Sample images, preferably two or three for each use case, with the
>> affected metadata, so that I can test with real life examples. (you can
>> send to my private address)
> Hi Marcel ,
> here is an example that show how I work. I'm not trying to say that this is
> the right way but this is mine :)
> I'm not going to talk only about search, so there will probably be ideas for
> other part of digikam :).
> First of all I transfer my photos to a temporary directory. Then I use gqview
> to add some IPTC tags. I use gqview  because this viewer is fast and I wrote
> perl scripts which I can launch directly from gqview. The IPTC tags that I
> set are:
>  . Source
>  . Copyright Notice
>  . City
>  . Credit
>  . By-line
>  . Headline
>  . Caption
> I perform this outside of digikam because the photos may have been taken by my
> wife, my son or myself. My scripts have source, Copyright Notice, Credit and
> By-line preset depending on the protograph who took the photo, so I just need
> to select the protograph to set all this settings. I think it will a good
> feature to have seach kind of "photograph selection".
> When this is finished, I import these photos in digikam and sets all keywords.
> I never set City as keyword because it is already sets in the City IPTC tag.
> When I search for photo I may use keywords (more than one, using either 'or'
> or 'and' between them), city Headline, Caption or credit (because credit,
> Copyright and source are similar in my case).
> I also search photo using exif tags (Lens name, Focal lenght, Iso, Speed,
> Aperture)
> I also plan to use scene code (news code) to describe my photos. I think this
> may be a powerful tools to categorize photos. If I understood well, scene
> code number uses a hierarchy. A lot of information can be found at
> http://www.iptc.org/NewsCodes/ For french reader, you can found some
> explanation at
> Of course, I think that digikam should include the definition of such scene

Yes, i have do it in new XMP metadata editor (digiKam for KDE4):


...plus a lots of predefined XMP fields used in photography.


The IPTC editor have also rewritted :


Gilles Caulier

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