[digiKam-users] Rereading metadata from images

[Maik Qualmann]

Your analysis is correct. The order in which digiKam queries the possible
tag fields can therefore be changed in digiKam. Programs use different tag
fields that they modify. Other programs update all possible fields.
Probably also Xmp.dc.subject fits for LR. Since there are so many different
programs on the market, it is not really possible to give a recommendation.

Maik

Am Di., 17. Nov. 2020 um 10:41 Uhr schrieb Fred Brigham <
fredbrigham at gmail.com>:

> As reported in my previous messages (Digikam-users Digest, Vol 186, Issues
> 10 & 13), my problem was that "Reread Metadata from File" did not appear to
> be working when I attempted to synchronize keyword tags with a foreign
> program. In my case the foreign program is F-Stop Gallery, an Android app
> running on a Chromebook, with digiKam 7.1.0 also running on the Chromebook
> in Linux. The tags were actually being read successfully from F-Stop and
> were visible in the digiKam Tag Manager but crucially they were not visible
> under Captions > Tags in the Right Sidebar (which I wrongly referred to as
> the Tag Manager in my last message). I am using Captions > Tags in the
> Right Sidebar to add and delete tags from individual images.
>
> After much trial and error, I have now established reliable keyword tag
> synchronization between F-Stop and digiKam. F-Stop uses Xmp.dc.subject for
> keyword tags and everything works fine when I move this field to the top of
> the list of metadata namespaces in Settings> Metadata> Advanced> Tags.
> There is a note in Settings> Metadata> Advanced> Tags saying that "Sequence
> is important when reading metadata" but the documentation doesn't provide
> any tips to help find the right order.
>
> Based on my experience, "Reread Metadata from File" works reliably when
> the metadata namespace used by the foreign program is moved to the top of
> the list (in my example Xmp.dc.subject). Of course the field to be moved
> would depend on the foreign program. My hypothesis is that in order to
> synchronize keyword tags effectively with Lightroom, for example, the field
> Xmp.lr.hierarchicalSubject should be moved to the top of the list.
>
> Can anyone confirm whether this hypothesis is reasonable or alternatively
> provide any other guidance on the principles behind sequencing the fields
> in Settings> Metadata> Advanced> Tags? Keyword tags are very widely used so
> if any guidance can be provided it would be helpful to many users.
>
> regards,
> Fred
>
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