[digiKam-users] Confused by tick boxes in "Edit Metadata" + how does "Captions" interact?

[Chris Green]

Remco Viëtor <remco.vietor at wanadoo.fr> wrote:
> > > > What would also be really, really useful would be a listing of which
> > > > Exif, IPTC and XMP fields correspond to each field in the "Edit
> > > > Metadata" section as this would clear up any ambiguity between
> > > > "Comment", "Caption", "Description" and similar.  Either this or give
> > > > the actual field names in the "Edit Metadata", e.g. you could put
> > > 
> > > In fact no. This tool try to simplify the complixity of reduntant metadat
> > > tags in files, something like the file properties in Photoshop.
> > 
> > OK, but it would still be very useful to be able to find this
> > information.  I know some are described in detail in the
> > Metadata->Advanced tab in Settings but it would be good to know how
> > all are handled.  Maybe the section in Settings could be extended?
> > 
> > Anyway, thank you for your reply, I know this is a rather 'messy' area
> > in handling image files so there is no easy answer.
> 
> Part of the problem for the XMP part is that Digikam tries to keep some 
> compatibility with other programs. That means that some tag contents have to 
> be duplicated over different XML tags. Worse, those tags can change without 
> warning, as Digikam has no control over what those other programs do.
> 
> Depending on what you plan on doing with that information, you may or may not 
> have to take into account all the different tags that store keywords. Best 
> might be to take an image with typical (or worst-case) tagging and create a 
> full dump of the metadata with exiftool or exiv2 (or both). That should show 
> you how those tags are handled.
> 
Yes, this is what I aim to do, I was just hoping that there might be
an easier way! :-)

-- 
Chris Green
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