template< class _TInputImage, class _TLabelImage, class _TCost, class _TTraits >
void
fpa::Filters::Image::RandomWalker< _TInputImage, _TLabelImage, _TCost, _TTraits >::
-SetInputImage( TInputImage* i )
+SetInputImage( const TInputImage* i )
{
this->SetInput( i );
}