[Digikam-devel] [Bug 289181] New: raw processor rotates images without Orientation EXIF tag
_kfj at yahoo.com
_kfj at yahoo.com
Sat Dec 17 11:11:01 GMT 2011
https://bugs.kde.org/show_bug.cgi?id=289181
Summary: raw processor rotates images without Orientation EXIF
tag
Product: digikam
Version: 1.9.0
Platform: Ubuntu Packages
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
AssignedTo: digikam-devel at kde.org
ReportedBy: _kfj at yahoo.com
Version: 1.9.0 (using KDE 4.6.5)
OS: Linux
When I turn off autorotate on my EOS 450D and take portrait shots, the
resulting CR2 files have the EXIF 'Orientation' tag set to 'Horizontal' and the
EXIF 'Camera Orientation' tag set to Rotate 90 CW or 270 CW. When converting
these images to TIFF with digiKam's batch processor, the resulting images are
rotated per 'Camera Orientation' tag. This should only happen when the
'Orientation' tag is also set (so, when the images are taken with the Camera
set to autorotate).
I doublechecked this behaviour against Canon's raw processor, raw therapee and
dcraw; they all perform as I expect and do not rotate these images.
Reproducible: Always
Steps to Reproduce:
feed an image with EXIF 'Orientation' tag Horizontal and 'Camera Orientation'
tag 'Rotate 90 CW' into digikam's batch raw processor
convert to TIFF
Actual Results:
the resulting image is rotated, even though it shouldn't be
Expected Results:
the image should not be rotated
Camera Orientation is AFAIK a maker-specific tag. It is correctly propagated
into the TIFF files, but when the general EXIF 'Orientation' tag isn't set, it
should not have any effect upon the conversion; the data should just be
converted in sensor geometry and show up landscape just as the sensor received
them.
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