[Insight-users] Getting the transformation used by theitk::OrientImageFilter

[J.S.Wijnhout at lumc.nl]

Hi,

You should be able to use GetFlipAxes () and GetPermuteOrder () to construct the transformation. For example a permutation of the x and y axes would correspond to a matrix:
0  1  0
1  0  0
0  0  1
whereas a flip across the x-axes would correspond to:
1  0  0
0 -1  0
0  0 -1
That is, if by flipping is meant: inversion about an axes. You'll have to check, if that is the case.

best,
Jeroen


-----Original Message-----
From: insight-users-bounces at itk.org on behalf of Anja Ende
Sent: Fri 11/04/2008 11:46
To: insight-users at itk.org
Subject: [Insight-users] Getting the transformation used by theitk::OrientImageFilter
 
Hi everyone,

How can I get the transformation that is applied to the image by the
itk::OrientImageFilter. I have a need where I have to apply the
inverse of that transformation to an input point. However, I am not
sure how to get reference to the transformation matrix.

Hope someone can help me...

Anja
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