Confirm usage of sct_maths -smooth

Hi Julien,

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!
Best wishes!

Zhaoxing Wei

You got it right!

1 Like

Thank you very much!