Is there any build-in function that I can average a curvature file with Radius
of 4mm on the surface, for example, lh.pial.H.crv file. in addition, lh.curv
are smoothed in some way, is it smoothed simply by averaging the values?
Thanks!
Best Regards,
yczhang
Hi yczhang,
yes, mris_average_curvature will do this on the surfae. It uses iterative
averaging, but this converges to a Gaussian. Doug: can you post the formula
that translates number of iterations into fwhm?
thanks
Bruce
p.s. remember to include the -w switch otherwise it won't write out
Zhangyuanchao wrote:
By the way, can I get the absolute value of a curv file using build-in
function rather than load it into matlab and then write it back to
binary files?
$mris_calc -o lh.abs.curv lh.curv abs
This will calculate the absolute value of the curv file 'lh.curv' and
save
you can just use mri_surf2surf with the --fwhm option
Bruce Fischl wrote:
Hi yczhang,
yes, mris_average_curvature will do this on the surfae. It uses
iterative averaging, but this converges to a Gaussian. Doug: can you
post the formula that translates number of iterations into fwhm?
thanks
