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Published 20 hours ago • verified publisher icon pedrocr

Some images with ambiguous orientation data are not rotated correctly

Open runfalk opened this issue 8 years ago • 0 comments

Some image formats contain orientation information in the Makernote tag. Here's one example where the normal Orientation tag doesn't match the one in the Makernote:

https://raw.pixls.us/getfile.php/346/nice/Sony%20-%20SLT-A99%20-%2014bit%20(3:2).ARW https://raw.pixls.us/getfile.php/346/exif/RAW_SONY_SLT-A99V.ARW.exif.txt

Exiftool outputs the following data where 270 CW is correct:

0x0112 Orientation                     : Rotate 180
0x0028 Camera Orientation              : Rotate 270 CW

The CameraOrientation tag for this particular image is within Tag9400a (0x9400) in the Makernote. According to http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Sony.html there are many different places where orientation can be stored.

runfalk avatar May 18 '17 11:05 runfalk