Man page - laplacianthickness(1)

Packages contains this manual

Package: ants
apt-get install ants

Documentations in package:

LaplacianThickness - part of ANTS registration suite

LaplacianThickness WM.nii GM.nii Out.nii {smoothparam=1} {priorthickval=500} {dT=0.01} {sulcus-prior=0} {laplacian-tolerance=0.001}

a good value for sulcus prior (if not 0, which disables its use) is
0.15 -- in a function :

1/(1.+exp( -0 .1*(laplacian-img-value-sulcprob)/0.01))