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From: Andrey Kiselev <dron@ak4719.spb.edu>
Date: Mon, 18 Oct 2004 23:03:43 +0400
To: tiff@remotesensing.org
Subject: Re: [Tiff] flip and rotate TIFF-Files
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On Mon, Oct 18, 2004 at 03:52:13PM +0200, Schorre, Bjoern wrote:
> Is it able to flip and rotate TIFF-Files with a libtiff-function?
> if YES --> Which function is it?!
> if NO -->  Has anyone written a function to rotate or to flip an image? Is

Do you need to actually rotate an image or you just want to alter the
'Orientation' tag without changing data? In former case read here:

 http://www.awaresystems.be/imaging/tiff/faq.html#q2

In latter case you should read the image directory, change the tag value
and write it back using the TIFFRewriteDirectory() function.

					Andrey

-- 
Andrey V. Kiselev
Home phone:  +7 812 5274898  ICQ# 26871517
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