https://bugs.kde.org/show_bug.cgi?id=444442
Bug ID: 444442
Summary: Conversion from Sony ARW to DNG loses pixels on the
right side of the image
Product: digikam
Version: 7.3.0
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Plugin-Bqm-DngConverter
Assignee: digikam-bugs-n...@kde.org
Reporter: l.jirkov...@gmail.com
Target Milestone: ---
SUMMARY
The converted DNG files are missing the rightmost 32 pixels (grid lines?). This
happens with ARW files from Sony A7RM3. I don't know whether other cameras are
affected.
The good folk at
https://discuss.pixls.us/t/dng-output-slightly-cropped/27582/10 helped
tremendously to identify the problem where I noticed that RawTherapee output is
slightly cropped when using digiKam DNG compared to ARW.
STEPS TO REPRODUCE
1. Convert Sony ARW file to DNG using digiKam's batch queue
2. Examine both files using rawpy[1]
OBSERVED RESULT
DNG output is missing 32 rightmost pixels.
EXPECTED RESULT
DNG contains the same data
SOFTWARE/OS VERSIONS
Arch Linux
KDE Frameworks 5.87.0
Qt 5.15.2
ADDITIONAL INFORMATION
I uploaded example DNG and ARW to my google drive (warning, large files):
https://drive.google.com/file/d/14JYTnuSHCix3FEEzNrMugY1fRlwLyDPW/view?usp=sharing
https://drive.google.com/file/d/1RHYFqE8gj0gXjG6SP539WfZVs1MlSvi1/view?usp=sharing
[1] I used the following script to obtain the RAW data:
```
import rawpy
import imageio
import sys
import os.path
path = sys.argv[1]
with rawpy.imread(path) as raw:
imageio.imsave(os.path.basename(path)+'.tiff', raw.raw_image)
```
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