[digiKam-users] Rereading metadata from images

Fri Nov 13 11:22:32 GMT 2020

Thanks for your response Maik. I went to the advanced metadata settings and
explored the options. I then did some extensive testing and found the
following:

When I add a file containing a keyword tag from a foreign program to an
album in digiKam, the tag is then visible in both programs. In the case of
digiKam the tag appears and is shown as selected in the Tag Manager. If I
then add further tags in the foreign program and reread the metadata in
digiKam, the tags are always visible in both programs without any problems.

If at any point I add a keyword tag in digiKam and reread the metadata in
the foreign program, the tag is then visible in both programs. This can be
repeated any number of times.

So far so good! However, after the addition of the first tag in digikam,
when I add further tags in the foreign program they are only visible in the
foreign program and never in digiKam Tag Manager, despite rereading the
metadata from the image.

I have checked the metadata in the image files using an external app and
found the following. While all is working well (i.e. before the addition of
the first tag in digiKam) the only metadata field used for the tags is
XMP::dc Subject. This is the case even after I have updated the digiKam
database from the image metadata. However, after adding the first tag in
digiKam, the tags are also shown in the XMP::digiKam field (and various
other fields e.g. XMP::Lightroom).

Maybe the solution lies in the metadata settings but I am not sure what I
should change.

regards,
Fred

PS I have just discovered that when I go to Item > Edit Metadata > Edit XMP
I can see the missing tags from the foreign program. The problem however
remains. After the addition of the first tag via digiKam, tags from the
foreign program are not visible in the Tag Manager.

On Tue, 10 Nov 2020 at 12:01, <digikam-users-request at kde.org> wrote:

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> Today's Topics:
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>    1.  Rereading metadata from images (Fred Brigham)
>    2. Re:  Rereading metadata from images (Maik Qualmann)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 10 Nov 2020 10:03:04 +0000
> From: Fred Brigham <fredbrigham at gmail.com>
> To: digiKam users mailing list <digikam-users at kde.org>
> Subject: [digiKam-users] Rereading metadata from images
> Message-ID:
>         <CAD_XrwZ0Y-h6XfO3=TKc8jVuKnXoanP9=
> OeajLe2Sq7RRH3xEA at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi,
>
> I installed digiKam v. 7.1.0 linux on my Lenovo Flex 5 Chromebook and all
> is working fine except when I try to "Reread Metadata from Images" via the
> Album or Item menus.
>
> The description of this function for the Album menu in the Documentation
> is:  "Write the metadata of all items in the current album to the database.
> The database will inherit the images metadata, not the other way round as
> in the previous menu item". This appears to be exactly what I want to do.
> (The description of this function for the Item menu is different but I
> assume the function is the same but limited to an item. If so, it would be
> good to make the descriptions consistent.)
>
> I realise that when working with databases it's usually advisable to make
> changes within the application concerned but I occasionally have good
> reason to add a keyword tag in another app. When the files are first
> imported into digiKam all keyword tags and other metadata are transferred
> but if I add tags at a later stage and use the "Reread Metadata from
> Images" function none of the new tags are visible in digiKam.
>
> Is this function not working correctly or is there really no way of
> updating metadata such as tags from images after the initial import?
>
> Thanks in anticipation,
> Fred Brigham
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> ------------------------------
>
> Message: 2
> Date: Tue, 10 Nov 2020 12:40:46 +0100
> From: Maik Qualmann <metzpinguin at gmail.com>
> To: digiKam - Home Manage your photographs as a professional with the
>         power of open source <digikam-users at kde.org>
> Subject: Re: [digiKam-users] Rereading metadata from images
> Message-ID: <2759658.0rub9Nsrb3 at linux-tpgn>
> Content-Type: text/plain; charset="us-ascii"
>
> The problem is in which metadata fields the foreign program saved the new
> keywords. And which metadata fields digiKam queries first. You can define
> this
> behavior in digiKam Setup under the advanced metadata settings.
>
> Maik
>
> Am Dienstag, 10. November 2020, 11:03:04 CET schrieb Fred Brigham:
> > Hi,
> >
> > I installed digiKam v. 7.1.0 linux on my Lenovo Flex 5 Chromebook and all
> > is working fine except when I try to "Reread Metadata from Images" via
> the
> > Album or Item menus.
> >
> > The description of this function for the Album menu in the Documentation
> > is:  "Write the metadata of all items in the current album to the
> database.
> > The database will inherit the images metadata, not the other way round as
> > in the previous menu item". This appears to be exactly what I want to do.
> > (The description of this function for the Item menu is different but I
> > assume the function is the same but limited to an item. If so, it would
> be
> > good to make the descriptions consistent.)
> >
> > I realise that when working with databases it's usually advisable to make
> > changes within the application concerned but I occasionally have good
> > reason to add a keyword tag in another app. When the files are first
> > imported into digiKam all keyword tags and other metadata are transferred
> > but if I add tags at a later stage and use the "Reread Metadata from
> > Images" function none of the new tags are visible in digiKam.
> >
> > Is this function not working correctly or is there really no way of
> > updating metadata such as tags from images after the initial import?
> >
> > Thanks in anticipation,
> > Fred Brigham
>
>
>
>
>
>
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