#include???
#include???


#include?“opencv2/core/core.hpp“??
#include?“opencv2/core/utility.hpp“??
#include?“opencv2/imgproc/imgproc.hpp“??
#include?“opencv2/imgcodecs.hpp“??
#include?“opencv2/highgui/highgui.hpp“??

using?namespace?std;
using?namespace?cv;

int?main（int?argc?char**?argv）
{

	std::string?in;
	if?（argc?!=?2）
	{
	std::cout?<	in?=?“../data/building.jpg“;
	}
	else
	{
	in?=?argv[1];
	}

	Mat?image?=?imread（in?IMREAD_GRAYSCALE）;

	#if?0
	Canny（image?image?50?200?3）;?//?Apply?canny?edge
	#endif

	//?Create?and?LSD?detector?with?st