[Digikam-users] Digikam rotation is incomprehensible to me

Julian Sorrel tacitdynamite at yahoo.com
Tue Jul 28 22:00:01 BST 2009

I have a little bit more specific information now. 

On the camera that DOESN'T have autorotation, if the image is rotated 90* counterclockwise (270* clockwise) from normal (and therefore needs 90* clockwise rotation to be normal), then the following is the only way I've found to get it rotated in the image AND thumbnail AND file:

1.) Image > Adjust Orientation Tag > Rotated Right
[image now looks correct in thumbnail AND image BUT NOT file]
2.) Image > Auto Rotate/Flip Using Exif Information
[image now looks 270* clockwise from normal in image AND thumbnail AND file]
3.) Image > Adjust Orientation Tag > Normal
[image now looks correct in thumbnail AND image BUT NOT file]
2.) Image > Auto Rotate/Flip Using Exif Information
[image now looks correct in thumbnail AND image AND file]

Please note that I have the flowing checked: 

Settings > Configure digiKam > Metadata > Show thumbnails flipped/rotated according to orientation flag

and the following unchecked: 

Settings > Configure digiKam > Metadata > Set orientation tag to normal after rotate/flip

--- On Tue, 7/28/09, Julian Sorrel <tacitdynamite at yahoo.com> wrote:

From: Julian Sorrel <tacitdynamite at yahoo.com>
Subject: [Digikam-users] Digikam rotation is incomprehensible to me
To: "digikam users" <digikam-users at kde.org>
Date: Tuesday, July 28, 2009, 2:11 PM

I have two cameras - a new one and an old one. The new one auto rotates images, the old one doesn't. I just took three thousand pictures at a wedding over a week. The pictures from the two cameras are mingled together as my wife and I were taking pictures at the same time and uploaded them *before* starting to use digikam. Every time I rotate images, they appear one way in digikam and another way when I upload them to flickr.  How can I resolve this situation? Is there a WHSIWYG solution in digikam?

Is there a way that I can completely disable the exif rotation function?  Can I set the rotate functions to ALWAYS change the file, and ignore the exif data (who outside of digikam uses exif for rotation anyway)?  I can't stand NOT KNOWING what digikam is going to do when I rotate a photo. Sometimes when I go Image > Rotate > Left or
 Image > Rotate > Right, it rotates 180* instead of 90*. I've read on a few posts that if you adjust Image > Adjust Exif Orientation Tag > Right and then Image > Auto Rotate/Flip Using Exif Information then you can permanently rotate the file ... but it's unpredictable what direction the "adjust exif orientation tag" adjustment will actually turn it. To confound things further, if you use "auto rotate/flip using exif information" twice in a row, it will actually continue to spin the picture 90*. All the posts and instructions I've read about rotation mention older functions like "rotate lossless 90*", which is no longer in the menus at digikam 0.10.0 on kde 4.2.2.

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