[Digikam-devel] [digikam] [Bug 318351] New: implement generic marker fields/tags

[Christoph Anton Mitterer]

https://bugs.kde.org/show_bug.cgi?id=318351

            Bug ID: 318351
           Summary: implement generic marker fields/tags
    Classification: Unclassified
           Product: digikam
           Version: 3.1.0
          Platform: Other
                OS: All
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: Metadata
          Assignee: digikam-devel at kde.org
          Reporter: calestyo at scientia.net

Hi.

Digikam already provides the following two:
- normal tags
Seem to apply to the whole image and are therefore rather suited for "global"
information like "macro shot" or "vacation" or "birthday picture".
Ideally less for things like "in Rome" cause in an ideal world, this would be
automatically determined by perfectly set GeoLocation tags.
It's not possible to associate these tags with a region of the image.

- face tags
To mark peoples faces with a rectangular field typically associated with their
name.

What I would need in addition was general tags associated with an area of the
image, ideally not only rectangular areas but any polygon. And of course any
arbitrary text of any length to be associated with it.
Ideally one could enable HTML (or well some HTML elements) in them so that one
can e.g. mark buildings and set the corresponding link to the Wikipedia
Article.
Have a look at what Flickr allows and what I do e.g. here:
https://secure.flickr.com/photos/calestyo/5892335742/in/set-72157627095137796
(you need to move the mouse over the image and its fields).
There you also see why just rectangles are problematic.


Eventually I think all this should be unified and generalised or well at least
the face tags and those I propose here.
Not sure if there is already and Exif/XMP/etc way to express such things, if
not one should make a custom one.

Cheers,
Chris.

Reproducible: Always

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