[VoxBo] Finding geometric center

[David January]

Hello,

I want to report the geometric center or center of mass of some masks
I've isolated.  I've been using vbregion, which tells me the location
of the peak, but for the min voxel and geometric center voxel, the
ouptut is 0,0,0.  Can this be fixed or is there another way to find
the geometric center?

-- 
David January
Department of Psychology
University of Pennsylvania
http://www.sas.upenn.edu/~djanuary/