[ITK] [ITK-users] In-place extraction of N-1 dimensional images from N dimensional images

[Dženan Zukić]

Hi Edwin,

you should be able to achieve your goal using import image filter
<http://www.vtk.org/doc/nightly/html/classvtkImageImport.html#details>. ITK
has import image filter too
<https://itk.org/Doxygen/html/classitk_1_1ImportImageFilter.html>, so you
can decide in which library to do dimensional reduction.

Regards,
Dženan

On Thu, Jul 28, 2016 at 4:37 AM, Edwin Bennink <hebennink at gmail.com> wrote:

> Hello,
>
> I am working on an ITK/VTK viewer for visualizing 3D+time image data. The
> data is represented by 4D images in ITK (x,y,z,t). I would like to be able
> to access the 3D data in VTK without copying it, since that would slow down
> scrolling through time in large datasets. I noticed that, although in-place
> extraction should be possible, the ExtractImageFilter 'says no' to in-place
> extraction when the input and output dimensions differ. Does anyone know a
> way to achieve my goal using existing ITK functions? For example, if there
> would be some way of reducing the dimension of 'flat' images, i.e. 3D
> (Nx,Ny,1) to 2D (Nx, Ny), then I could still use the ExtractImageFilter.
>
> Best,
> Edwin
>
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