Hi,
The default should use a 3x3x3 voxel kernel and hence only erode
by one voxel (although it might look like more for thin structures).
Are you sure it is eroding by more than one voxel?
You can always try specifying a custom kernel with the -kernel options.
All the best,
Mark
On 22 Sep 2008, at 19:59, Carlos Faraco wrote:
> I am wondering how I can control the depth of the amount of voxels
> that are
> eroded when using fslmaths -ero? I originally thought -ero eroded to
> a depth
> of one voxel, but the default kernel doesn't appear to be doing that.
>
> Thanks,
>
> Carlos
>
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