I want to smooth the fMRI image of the spinal cord and use the command of
sct_maths -i IMAGE -o IMAGE -smooth xxx
But I need to confirm that the following value of -smooth should be sigma value, which was the FWHM value divided by 2.35482004503?
If I want to use the FWHM of 3,3,8, that need to use the -smooth following value of 1.27398,1.27398,3.397287?
I am looking forward to your reply!