Hi,
I can run a 3d Gaussian spacial filter on a T1.mgz image using matlab functions, but I was wondering if there isn't already a freesurfer script that does the same (with a FWHM input).
John
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John Papaioannou Medical Imaging Sciences Digital Mammography, CAD Mammography Department of Radiology Biological Sciences Division The University of Chicago 5841 South Maryland Avenue Chicago, Illinois 60637 773.834.5104 voice 773.702.0371 fax
Hi John
you can use mri_nlfilter to do this (although it will be slower than it needs to be since it is applying a nonlinear filter, but disabling the nonlinear component of it):
mri_nlfilter -n -gaussian <gaussian sigma> <input vol> <output vol>
cheers Bruce
On Mon, 13 Aug 2012, John Papaioannou wrote:
Hi, I can run a 3d Gaussian spacial filter on a T1.mgz image using matlab functions, but I was wondering if there isn't already a freesurfer script that does the same (with a FWHM input).
John
John Papaioannou Medical Imaging Sciences Digital Mammography, CAD Mammography Department of Radiology Biological Sciences Division The University of Chicago 5841 South Maryland Avenue Chicago, Illinois 60637 773.834.5104 voice 773.702.0371 fax
Hi John, try mri_fwhm. This was designed to measure the FWHM, but you can use it to apply a given FWHM too.
doug
On 08/13/2012 10:09 AM, John Papaioannou wrote:
Hi,
I can run a 3d Gaussian spacial filter on a T1.mgz image using matlab functions, but I was wondering if there isn't already a freesurfer script that does the same (with a FWHM input).
John
JohnPapaioannou Medical Imaging Sciences Digital Mammography, CAD Mammography Department of Radiology Biological Sciences Division The University of Chicago 5841 South Maryland Avenue Chicago, Illinois 60637 773.834.5104 voice 773.702.0371 fax
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John Papaioannou