[ITK-users] [ITK] Extract slice from ResampleFilter

[sidharta]

Dear  Dženan,

First of all, thank you for all your help.

So, from the previous posts I was able to resample the CBCT image so that it
lies in the direction of the Trajectory. So far so good. Now, I am trying to
extract only a part of the volume in this resampled image. So, I figure that
since I already calculated the direction, I could just set the size of the
output image to be what I want in the "ResampleImageFilter" and it should
work fine. However, when I do this, the extracted volume is in a different
direction than I assumed it to be. For example,

<http://itk-users.7.n7.nabble.com/file/n38228/Capture.png> 

In the above image, I assumed the part of the volume that I extract is
actually in the direction shown in the "Green" line, however I instead get
the volume along the "Red" line. Why is this so? The direction I calculate
for the "ResampleImageFilter" was essentially along the "Green" line. 

Additionally, what I am trying to do, is this not possible with the
"ResampleImageFilter"? Do I need to extract the volume using the
"ExtractImageFilter" instead?

Thank you for your time
Sidharta



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