[Insight-users] apply itk::RecursiveGaussianImageFilter on a region defined by a mask

[zilu]

Hi everyone,

I have a question regarding the itk::RecursiveGaussianImageFilter. Now I'm
using this filter to smooth a 3D displacement field for a registration task. 
I noticed that there are ways to restrict the application of the filter to a
Region Of Interest, but as far as understood this ROI can only be cubic.
My question is: is it possible to apply this filter to a displacement field
taking into consideration only an ROI defined by a pre-loaded (segmentation)
mask? And if yes, how can you deal with the boundary conditions?
Thanks a lot,

David



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