Shape enhanced method exaggerates a shape using a Laplacian smoothing operator in the reverse direction.
http://wiki.blender.org/index.php/User:Apinzonf/shape_enhanced

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@53853 954f8c5b-7b00-dc11-b283-0030488c597c