[Insight-users] segmentation boundary

[Alberto Bert]

Hi all,

thaks to Luis for his patience...

I'm trying to segment a 3D image with a region growing algorithm.
Actually I'm not very interested in the segmented region but in its
boundary. More precisely I would like extract (and write to file, for 
further processing) position and intensity of all "voxels" belonging 
to the boundary (that is, the external part of the segmented region.)
I don't know if something similar already exists in itk, and, if not,
can tou give me some suggestion about it (where I've to start from?)

Thank you very much,
Alberto.