https://bugs.kde.org/show_bug.cgi?id=493838
Bug ID: 493838
Summary: DigiKam and DNG files
Classification: Applications
Product: digikam
Version: unspecified
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Plugin-Bqm-DngConverter
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Hello!
The DAM facilities of DigiKam are absolutely superior to those of Adobe
Lightroom 5 and Adobe Bridge. Also, the speed and slide show capacities are
outstanding in comparison with them.
But there is a problem about the way DK handles DNG files. I use that format to
store photos in a a relative non-destructive way.
I shoot photos using HDR which results in far too strong colors. In LR, I crop
the photo, correct angles and colors. From LR, I then export a JPG file.
About DNG files, ChatGPT says: βIn summary, DNG files allow the metadata to be
written directly into the photo file, without the need for external XMP sidecar
files, while preserving the original raw image data for non-destructive
editing.β
What seems to be happening in DK, is that DK β in some cases - reads off the
original raw image data and displays that image file while ignoring the
metadata that had been written from Lightroom 5.
This shows in several contexts. In DK for Windows, the following happens.
1) Optically, the DNG and JPG photos are shown the way they look in LR5.
2) In slide shows in DK, the DNG photos are shown optically as
preprocessed.
3) If I use DK to convert DNG to JPG, the JPG photo shows the preprocessed
version, ie the photo as it came out of the camera, strong colors, queer angles
and no cropping.
I enclose three files in 3 formats, 3 DNG, 3 JPG exported from LR5 and 3 JPG,
converted by DK.
Also, it remarkable that DK sometimes converts DNG files into JPG files much
larger than the original.
β
As for wishes, my workflow would be easier if DK Batch Queue Workflow included
options for a) importing files from an SD-card, b) a choice of location for
storing those files (after conversion, say) and c) a choice of delete files on
SD-card after import and verification of file transfer. Adobe Bridge has a
corresponding set of alternatives.
I hope this helps.
Best regards
Bertil Rolf,
Baden bei Wien
PS. I will transfer a zipfile (53 MB) with 9 photo files one way or another.
Here a link:
https://drive.google.com/file/d/12_q0RMDsMn1QWiJSvl1Dft8FRPXVfh6a/view?usp=drive_link
SOFTWARE/OS VERSIONS
Windows: W11
Linux/KDE Plasma: 8.5.0
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