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 Bruce

p.s. remember to include the -w switch otherwise it won't write out the results.

On Mon, 1 Jun 2009, Zhangyuanchao wrote:

...

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

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