[Insight-users] Local smoothing of a deformation field

[Miller, James V (Research)]

Valerie, 

Currently, you will have to write your own filter to take the 
deformation field as one input and the mask to operate on as another
input. None of the smoothing filters currently support operating under
a mask.

You should be able to model this after the itkNormalizedCorrelationImageFilter.
This filter allows you to calculate of the normalized correlation of a kernel
across an image and restrict the calculation to just the pixels that are
under the mask.

We hope to contribute code that will allow any neighborhood operator
to be applied under a mask but we have not had the time to prepare that
code for inclusion in ITK.

Jim

-----Original Message-----
From: insight-users-bounces+millerjv=crd.ge.com at itk.org
[mailto:insight-users-bounces+millerjv=crd.ge.com at itk.org]On Behalf Of
Valérie Duay
Sent: Wednesday, August 31, 2005 9:55 AM
To: insight-users at itk.org
Subject: [Insight-users] Local smoothing of a deformation field


Hello,

I'd like to smooth a deformation field but locally. The areas to smooth 
are indicated on a binary image.
What would be the best way to do that with the ITK library?

Thanks,

Valerie

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