yes, that's right. Sorry, forgot to tell you that bit Bruce On Wed, 3 Apr 2019, Tim Schäfer wrote:
External Email - Use CautionDear Bruce,
thanks a lot!
Btw, I found in https://github.com/freesurfer/freesurfer/blob/dev/mris_curvature/mris_curvat... that the default for '-nbrs' is 2.
Best,
Tim
On April 3, 2019 at 4:34 PM Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:
Hi Tim
- this is iterative averaging on the mesh, which approximates Gaussian
in the limit. So -a 2 means average twice.
- -nbs N means N hops on the mesh. 1 would be just nearest neighbor
cheers Bruce
On Wed, 3 Apr 2019, Tim Schäfer wrote:
External Email - Use CautionDear list,
I have two questions on mris_curvature command line options:
- the '-a' option, help text is: '-a <avgs>: perform <avgs> iterative averages of curvature measure before saving':
Afaik, this is a smoothing operation. But what exactly is averaged?
- the '-nbrs' option, help text is '-nbrs <nbrs>: set neighborhood size to nbrs'
For this one I would like to know what the default value is if the option is omitted. And what is the unit, is the neighborhood given in hops in the mesh (all vertices reachable by crossing <nbrs> edges)?
Best,
Tim
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Best,
Tim
-- Dr. Tim Schäfer Postdoc Computational Neuroimaging Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
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