Sorry newbie question...I'd like to create masks using the Harvard-Oxford atlas because it has the subdivisions of ROIs I'd like...but the ROIs are all bilateral. I've been using fslview to load the structures from the H-O maps and then manually erasing one of the sides to create new unilateral masks...but according to the 3D view and doublechecking in other displays, I never seem to get a clean erase even though I think I'm going slice by slice, systematically in all 3 dimensions, and increased the pixel size of the eraser. The 3D view doesn't seem editable? Surely there is a better way of doing this?
Thanks a lot in advance for any advice,