Method setL2Norm

dependency/densecrf/examples/dense_learning.cpp:52–54

		initial_knl_param_ = crf_.kernelParameters();
	}
	void setL2Norm( float norm ) {
		l2_norm_ = norm;
	}
	virtual VectorXf initialValue() {
		VectorXf p( unary_*initial_u_param_.rows() + pairwise_*initial_lbl_param_.rows() + kernel_*initial_knl_param_.rows() );
		p << (unary_?initial_u_param_:VectorXf()), (pairwise_?initial_lbl_param_:VectorXf()), (kernel_?initial_knl_param_:VectorXf());