https://bugs.kde.org/show_bug.cgi?id=447503
Bug ID: 447503
Summary: Problem reading 3rd party software tags from JPEG
files
Product: digikam
Version: 7.4.0
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Tags-Keywords
Assignee: digikam-bugs-n...@kde.org
Reporter: ristrett...@live.com
Target Milestone: ---
SUMMARY
In my workflow I'm using digiKam to manage my pictures.
* After importing the RAW photos in digiKam photos are initially tagged and
rated there.
* The RAW processing and updating of picture-rating is done in darktable.
* After RAW processing, the JPEGs are exported by darktable to the parent
directory of the RAW files including all meta-information.
* The JPEGs are then read into the Excire Foto software. The tags added in the
prior steps are perfectly available in Excire, too. More tags are now added to
the already existing set of tags, based on the Excire image recognition
features.
* The JPEGs metadata is updated by Excire storing additional information to
the Xmp.dc.subject and the proprietary Xmp.excire.hierarchicalSubject elements.
* The files are finally synced with digiKam by refreshing the album, that
already holds the RAW files.
* In digiKam all JPEGs are now visible in the related album. All tags from the
Xmp.dc.subject are available in digiKam and assigned to the JPEGs, but the
additional tags that were stored by Excire Foto in the
Xmp.excire.hierarchicalSubject element are neither available in digiKam tags,
nor assigned to the JPEGs. Even though a dedicated setting was applied in
digiKam (see below).
STEPS TO REPRODUCE
1. set-up a tag related rule for reading the special/proprietary excire tags:
digiKam Options => meta-data => advanced. There I choose “Tags” from the
Dropdown and have “Read Options” chosen. The check-box “Unify read and write”
is deactivated. I define a new rule for Xmp.excire.hierarchicalSubject,
separator ‘|’ and XMPBAGS as special option. Finally I moved it at the 2nd
position after the Xmp.dc.subject rule, that I put to the first position.
2. Import the attached JPEG into digiKam or refresh the album that already
holds this JPEG file
OBSERVED RESULT
1. see, that all tags from Xmp.dc.subject are perfectly available as tags in
digiKam and are assigned to the JPEG metadata inside digiKam
2. see, that no tags from the proprietary Xmp.excire.hierarchicalSubject are
imported
EXPECTED RESULT
Also the proprietary Xmp.excire.hierarchicalSubject tags shall be imported into
digiKam, be available there in the tag list and be assigned to the JPEGs
SOFTWARE/OS VERSIONS
Windows: 10 Pro x64 20H2
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2 (built against 5.15.2)
ADDITIONAL INFORMATION
see also
https://discuss.pixls.us/t/take-over-comments-from-jpeg-into-tags-of-digikam/28356
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