[Bug 229010] New: No support to resync GPS data from digikams database into into jpg files

[krienke]

https://bugs.kde.org/show_bug.cgi?id=229010

           Summary: No support to resync GPS data from digikams database
                    into into jpg files
           Product: digikam
           Version: 1.1.0
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           1.1.0 (using KDE 4.3.5)
OS:                Linux
Installed from:    openSUSE RPMs

I created jpg files from my RAW photos using an external program (not digikam).
Next using digikam I correlated a GPS track with the jpg files using the
correlate KIPI-plugin in digikam. After all I had to manually set GPS position
for 10% of the 600 photos I wanted to process. So far everything works fine.

Then I realized that the jpgs had a compression factor that was to high, so I
recreated all the jgs (with the external program) with better quality and
copied the new files over the old ones. The effect was of course that all the
GPS information stored inside the old jpgs metadata was lost now. However
digikam still knew GPS information of each photo from its database and was able
to show the location of each photo on the map.

The problem now was how to write this GPS info from digikams database back into
the freshly created jpg files. I tried menu entry "Photo->Write metadata to
photo" but this did not add the GPS information to EXIF allthoug I think it
should since GPS information is also metadata.

I did not find any other way to automatically batch write back GPS info stored
inside digikams database to the about 600 jpg files.

Thanks
Rainer

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=229010


Gilles Caulier <[hidden email]> changed:

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          Component|general                     |Geolocation




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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=229010

--- Comment #1 from Gilles Caulier <[hidden email]> ---
This file still valid using digiKam 3.5.0 ?

Gilles Caulier

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[krienke]

https://bugs.kde.org/show_bug.cgi?id=229010

--- Comment #2 from [hidden email] ---
Just tested with digikam 3.5.0. This bug report is still valid. GPS information
is not rewritten when using "More->Write Metadata to each file" in sidetab
"Caption/Tags".

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=229010

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
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            Version|1.1.0                       |3.5.0

--- Comment #3 from Gilles Caulier <[hidden email]> ---
Ok,  Thanks

And with Maintenance tool ? You can process now a single album to sync metadata
with DB. It's the same problem or not ? Just to know if problem is general or
only limited to caption and tags sidebar.

Gilles Caulier

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[krienke]

https://bugs.kde.org/show_bug.cgi?id=229010

--- Comment #4 from [hidden email] ---
The maintenance tool doesn't do the job either. It  writes all sort of other
meta data like tags, camera info etc into exif, iptc and xmp but no gps tags
like GPSLongitude and  GPSLatitude etc.

Rainer

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[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=229010

mau <[hidden email]> changed:

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--- Comment #5 from mau <[hidden email]> ---
Yesterday I ran into the same problem:
In the past I had geo-located many but not all photos and yesterday I began
correcting some wrong geo tags and setting missing ones. For the initial test
as well as most images that seemed to work fine, but at some point in time I
realized, that there are images where digikam shows the corrected gps data, but
the xmp files are not updated correctly. Furthermore there might be a bug that
gps data is written into the jpg although I've set it to write to metadata
only.

I tried to get the gps data in the sidecar files by both Write Metadata to File
and by using the Maintenance Tool, but neither of them worked.

Now I wonder how I can check that all gps tags are written correctly to the
xmp's - yesterday I loaded test files into darktable, but that's not perfect
and doesn't scale that well... And the fact that gps coordinates can be
specified in different formats doesn't help either, converting them isn't that
much fun...

Is there a way to force digikam to write the gps data into the xmp files, maybe
on the command line? Another idea for a workaround?

Do you need more info or is there another way I can help?

My settings: write all metadata to sidecar files only.
My version: digikam 4.4 on Debian Jessie (4.14 in jessie-backports misses gps
support completely, but that's a different problem).

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