<font size="2"><font face="verdana,sans-serif">Maybe this example will help:<br><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/itkVtkImageConvert">http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/itkVtkImageConvert</a><br>
<br></font></font><br><div class="gmail_quote">On Thu, Nov 10, 2011 at 21:28, Jeremy Lecoeur <span dir="ltr"><<a href="mailto:jeremy.lecoeur@vanderbilt.edu">jeremy.lecoeur@vanderbilt.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
<br>
Hello,<br>
<br>
I have two 3D images, one is a sub-volume of the other but is not in the<br>
same orientation.<br>
For the big image, I know its size and also the coordinates in mm of its<br>
first voxel with respect to a frame of reference.<br>
For the small image, I know its size, the coordinates in mm of its first<br>
voxel with respect to the same frame of reference and also the 3 euler<br>
angles (phi, theta, psi) that defines its orientation.<br>
With that, how can I compute the transformation matrix that will allow<br>
me to see the small image in the big image, at the right place? I know<br>
it's supposed to be fairly simple but I cannot figure it out.<br>
<br>
Jeremy<br>
<br>
-- <br>
Jeremy Lecoeur, Ph.D.<br>
<br>
<br>
<br>
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