[Insight-users] Parallel iteration of 2D/3D image series

[Luis Ibanez]

Hi Matt,

The filters that must be applied in 2D should be instantiated using
a 2D image type.

When you select the slice (frame) that you want to process via one
of these 2D filter, out of the (3D = 2D+time) volume that you have
created, you should use the ExtractImageFilter, with the option  that
converts a 1-slice 3D image into a 2D image.

See the example in:

         Insight/Examples/IO/ImageReadExtractWrite.cxx


Don't try to trick a 3D filter into behaving like a 2D filter by simply
manipulating its neighborhood settings. That will lead to terribly
bad performance.


     Regards,


           Luis



-----------------------------------------------------------------------------------------
On Tue, Feb 2, 2010 at 5:12 AM, Mat <matthias.dodt at mdc-berlin.de> wrote:
> Hi!
>
> A simple question due to data processing. I have a basic image-analysis
> pipeline which i would like to extend to work on a stack of images (video).
> Some Filters should only be applied in 2D while others require 3D
> information of the previous frames. I am using the ImageSeriesReader on
> float , dim=3 images type to read an image stack. Normally i would do this
> in my own filters by using a NeighborhoodIterator with defined radius.
>
> How do i restrict certain filters (for ex.
> CurvatureAnisotropicDiffusionImageFilter) to work on each slice (in 2D)
> while others should work in 3D? It doesnt seem to be possible to define a
> radius or dim to work on for this filter...
>
> thanks,
>
> mat
>
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