pervertexdata.smoothgaussian: Perform Gaussian smoothing

In fsbrain: Managing and Visualizing Brain Surface Data

Perform Gaussian smoothing

Description

Perform Gaussian smoothing

Usage

pervertexdata.smoothgaussian(
  spherical_surface,
  data,
  fwhm = 15,
  truncfactor = 3.5
)

Arguments

spherical_surface	an fs.surface instance representing the spherical version (lh.sphere or rh.sphere of the subject).
data	numerical vector of per-vertex data for the surface
fwhm	double, the full width at half maximum for the Gaussian kernel
truncfactor	the factor after how many stddevs to truncate the Gaussian kernel

Value

the smoothed data

Note

This function has been adapted from FreeSurfer and it is subject to the FreeSurfer software license.

Examples

## Not run: 
sjd = fsaverage.path();
spherical_surface = subject.surface(sjd, "fsaverage3",
  surface="sphere", hemi="lh");
vdata = subject.morph.native(sjd, "fsaverage3", "thickness", hemi="lh");
vdata_smoothed = pervertexdata.smoothgaussian(spherical_surface,
 vdata, fwhm = 15);
vis.data.on.subject(sjd, "fsaverage3", morph_data_lh = vdata);
vis.data.on.subject(sjd, "fsaverage3", morph_data_lh = vdata_smoothed);

## End(Not run)

fsbrain documentation built on July 9, 2023, 7:12 p.m.