[Insight-users] SimpleITK and Transforms

[Bradley Lowekamp]

Hello,

You are correct that we do not have the SimpleITK interface to transforms yet. It is part of the forth coming wrapping of the registration framework.

However, for your particular example it can still be done in SimpleITK. By using manipulating the Direction matrices of the images during resampling.

The ResampleFilter has the "SetOutputDirection" and "SetOutputOrigin" methods which could be used to accomplish a rigid transformation[1]. After the resampling the direction and origin should be manually set to their true value.

Brad

[1] http://www.itk.org/SimpleITKDoxygen/html/classitk_1_1simple_1_1ResampleImageFilter.html


On Apr 25, 2012, at 3:51 PM, Rupert Brooks wrote:

> Hi,
> 
> I was just playing around with SimpleITK, and it appears to me the
> transform classes are not wrapped.  Is that correct?  My plan, fwiw,
> was to write a quick python script that reads points, computes the
> best fit rigid transform (with numpy, say), and then resamples an
> image based on that transform.
> 
> (i definitely can do this in C++, i just thought it was an interesting
> Simple ITK exercise.)
> 
> Regards,
> Rupert
> --------------------------------------------------------------
> Rupert Brooks
> rupert.brooks at gmail.com
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========================================================
Bradley Lowekamp  
Medical Science and Computing for
Office of High Performance Computing and Communications
National Library of Medicine 
blowekamp at mail.nih.gov



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