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Rotate jpg file based on EXIF data

Posted on 2008-10-27
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Last Modified: 2012-05-05
I am not sure there is a solution for what I want to do but I thought I would ask anyways...

I have a .net application that gets xml from an external source with images.
I am loading the xml and images and displaying them, no image attributes are contained in the XML file.
Some images are lanscape and some portrait

Is there a way somehow how to use the EXIF data in the JPG to work out whether the shot should be displayed horizontally or vertically and rotate the image as neccassary???
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Question by:clearchannel
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6 Comments
 
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by:openshac
ID: 22811503
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by:clearchannel
ID: 22865531
Those links don't really help with what I want to do. Sorry.
They relate to extractng the EXif data and lossless image support, neither refer to the image orientation etc.
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by:openshac
ID: 22865821
Both posts give details on how to get the PropertyItems from the EXIF data.
If I'm not mistaken the ProprtyItem you're interested in PropertyItem 274 - the Orientation tag.
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by:clearchannel
ID: 22865887
As you just linked to other EE posts, Can you point out where then as I did not see any reference.
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openshac earned 500 total points
ID: 22866093
I think all the articles talk about using the PropertyItems so you just need to be able to read those first.
Then I think you're interested in PropertyItem 274 - the Orientation tag.
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by:openshac
ID: 22866137
>>so you just need to be able to read those first

The PropertyItems collection that is (not the articles)

Didn't mean to sound condescending ;-)
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