[ITK-users] image transform in worldspace

[Dženan Zukić]

Hi Petar,

rigid+scaling transformation can be accomplished with header only changes
by modifying header information (origin, spacing, directions). Resample
image filter will re-orient the voxels. If you want to avoid voxel
resampling, you need to apply transformation to the header information and
change it accordingly. I don't think there is an existing solution for that.

Regards,
Dženan

On Thu, May 26, 2016 at 9:26 AM, Petar Petrov <pip010 at gmail.com> wrote:

> Hello ITK community,
>
> I would really like to know how to perform any transformation (like
> rotation)
> of an image so that only the header information is modified.
>
> So far I understand a typical registration pipeline is supposed to do
> exactly that.
>
> However, can I simply use ResampleImageFilter with some itk transform
> object?
> It seems it will actually reorient the voxels and not the image-to-world
> matrix in the headers of various file formats?
>
> Please any direction will be appreciated,
>
> cheers,
> Petar
>
>
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