[Insight-users] filter to expand binary mask based on curvature

[Luis Ibanez]

Hi GT,

The Voting image filters have effects similar to propagation 
proportional to curvature.

You may want to give it a try at the examples:

   Insight/Examples/Filtering
      VotingBinaryHoleFillingImageFilter.cxx
      VotingBinaryIterativeHoleFillingImageFilter.cxx



   Regards,


      Luis



----------------
gregthom wrote:
> Greetings
> 
> I am working a modeling of 3D structures and for now, I have run into a
> problem.
> I have a 3D mask of an object where I have 1s inside and 0s outside object.
> 
> I create a kind of falloff distribution by convolving this 3D mask with a
> Gaussian kernel of standard deviation sigma. Now doing that produces some
> "nice results" except for some areas on the border of my mask with high
> curvature, the convolution is underestimated.
> Now I think if I first expand the mask by these amount before doing the
> convolution, I will eliminate this underestimation.
> 
> is there any filter in ITK that works on a 3d mask by expanding the mask
> locally based on the degree of curvature ? 
> 
> Best wishes
> 
> GT