The mask has to be a 3-dimensional binary volume. I'm not sure there is a way to do what (I think) you want to do (would not make sense).
On 5/17/18 11:02 AM, Eduard Vilaplana Martinez wrote:
Dear freesurfer experts,
I would like to ask you about the mris_fwhm script. What does the flag "--mask" exactly do? Suppose I would like to compute the effective smoothness of an mri dataset. Some subjects have zeros in some vertices, but instead of using the prune option, I would like to use all the available signal, so I have to use a different mask for every subject. Would the option mask do the job in that case and would accept the multidimensional mask? Or rather the "--mask" option expects for a single (not multidimensional) mask?
Any insight would be greatly appreciated. Thanks in advance, Eduard Vilaplana.
Unitat de Memòria/Memory Unit Servei de Neurologia/Neurology Department Hospital de la Santa Creu i Sant Pau Sant Antoni Mª Claret 167 Barcelona 08025 Spain (Tel) +34 93 556 59 86 (ext 8229) Email:evilaplana@santpau.cat http://santpaumemoryunit.com/
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer