for( fit = faceList.begin( ); fit != faceList.end( ); ++fit )
{
bit = itk::ConstNeighborhoodIterator< TInputImage >( this->GetRadius( ), input, *fit );
for( fit = faceList.begin( ); fit != faceList.end( ); ++fit )
{
bit = itk::ConstNeighborhoodIterator< TInputImage >( this->GetRadius( ), input, *fit );