[vtkusers] Question for relationship between ITK and VTK coordination system

[Dženan Zukić]

I am facing the same problem. If the settings during configuration of ITK in
CMake is are left at default, the coordinates differ a lot.
If ITK_IMAGE_BEHAVES_AS_ORIENTED_IMAGE is set to false, then coordinates
match (but then the patient orientation is lost).

And by coordinates, I mean the ones received from calls
to TransformIndexToPhysicalPoint, TransformPhysicalPointToContinuousIndex
and companions.

To obtain vtkImage I am using ImageToVTKImageFilter. Any help on this?

Regards,
Dženan

On Fri, Jan 21, 2011 at 01:33, Wonsup LEE <mcury at postech.ac.kr> wrote:

>
> Hello anyone,
>
> I wonder how I can adjust ITK coordination to VTK coordination.
> I got information from CT images and applied some algorithms to CT data
> using ITK.
> Using ITK functions, I could handle each pixels of the CT image (e.g., 512
> x
> 512 pixel image).
> And then I visualized the result using VTK. Also I visualized CT images
> using VTK directly.
> However, even I used same CT images, but the ITK result and VTK result were
> different according to coordination.
>
> So, what I'm asking is how I can transform ITK coordinate to VTK's one.
> I tried to search this issues but I cannot find informative article.
> Is there an mathematical relationship between ITK and VTK, or any function?
> Please answer how to calculate or how to use functions for coordination.
>
> Thank you very much.
>
> Best regards,
> LEE
>
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