:) thanks. In volume images dilation is usually by 1 voxel, but as far as I understand, label is a surface represented by a mesh where a distance between vertices does not need to be the same. So if I want to dilate the label by 10 mm do I click "dilate label" 10x.
Thanks, Martin On Sat, Nov 7, 2009 at 8:36 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu>wrote: > once every time you click "dilate label" > > On Sat, 7 Nov 2009, Martin Kavec wrote: > > Hi Bruce, >> >> if I dilate an arbitrarily shaped label in tksurfer, how much is it >> actually >> dilated? >> >> Thanks, >> Martin >> >> On Sat, Nov 7, 2009 at 8:18 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu >> >wrote: >> >> Hi Yigal, >>> >>> yes, you can select the vertex, make a label out of it, then dilate it >>> however many times you want. This will be approximately spherical. >>> Alternatively you could write some code to use the ?h.sphere surface to >>> compute geodesic distances (great circles) to do it more exactly, but we >>> don't have anything that will do that (easy enough to do in matlab >>> though). >>> >>> cheers >>> Bruce >>> >>> >>> On Sat, >>> 7 Nov 2009, Yigal Agam wrote: >>> >>> Hi, >>>> >>>> In surface-based analysis, is it possible to create an ROI label that is >>>> a circle of a certain radius around a given vertex? >>>> >>>> Thanks, >>>> Yigal >>>> _______________________________________________ >>>> Freesurfer mailing list >>>> Freesurfer@nmr.mgh.harvard.edu >>>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>>> >>>> >>>> >>>> _______________________________________________ >>> Freesurfer mailing list >>> Freesurfer@nmr.mgh.harvard.edu >>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>> >>> >>
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