#define?_USE_MATH_DEFINES
#include?
#include??
#include?????
#include??
#include??

using?namespace?std;
using?namespace?cv;
class?LineFinder?{

private:
	Mat?img;	//原圖
	vectorlines;	//向量中檢測到的直線的端點				
	double?deltaRho;
	double?deltaTheta;
	int?minVote;	
	double?minLength;	
	double?maxGap;	
public:
	LineFinder（）?:deltaRho（1）?deltaTheta（M_PI?/?180）?minVote（10）?minLength（0.）?maxGap（0.）?{};

	void?setAccResolution（double?dRho?double?dTheta）?{

		deltaRho?=?dRho;
		deltaTheta?=?dTheta;
	}


	void?setMinVote（int?minv）?{

		minVote?=?minv;
	}


	void?setLineLengthAndGap（double?length?double?gap）?{

		minLength?=?length;
		maxGap?=?gap;
	}

	
	vectorfindLines（Mat?&binary）?{

		lines.clear（）;
		HoughLinesP（binary?lines?deltaRho?deltaTheta?minVote?minLength?maxGap）;
		return?lines;
	}

	//繪制檢測到的直線
	void?drawDetectedLines（Mat?&image?Scalar?color?=?Scalar（255?255?255））?{

		//畫線
		vector::const_iterator?it2?=?lines.begin（）;
		while?（it2?!=?lines.end（））
		{
			Point?pt1（（*it2）[0]?（*it2）[1]）;
			Point?pt2（（*it2）[2]?（*it2）[3]）;
			line（image?pt1?pt2?color）;
			++it2;
		}
	}
};

int?main（）?{


		Mat?image?=?imread（“G:/Opencv/road.jpg“）;
		namedWindow（“image“）;
		imshow（“image“?image）;
		Mat?result;
		cvtColor（image?result?CV_BGR2GRAY）;
		//應用Canny算法
		Mat?contours;
		Canny（result????
			contours????
			125????
			350）;???
					
		LineFinder?finder;		
		finder.setLineLengthAndGap（100?20）;
		finder.setMinVote（80）;		
		vectorlines?=?finder.findLines（contours）;

		int?n?=?0;????//選擇line?0
		Mat?oneline（contours.size（）?CV_8U?Scalar（0））;
	
		line（oneline
			Point（lines[n][0]?lines[n][1]）
			Point（lines[n][2]?lines[n][3]）
			Scalar（255）
			5
		）;	
		bitwise_and（contours?oneline?oneline）;

		Mat?oneLineInv;????//白色直線反轉后的圖像
		threshold（oneline
			oneLineInv
			128???
			255???
			THRESH_BINARY_INV）;

		cvNamedWindow（“One?line“）;
		imshow（“One?line“?oneLineInv）;
	
		vectorpoints;
		
		for?（int?y?=?0;?y?		{
			//y行
			uchar?*rowPtr?=?oneline.ptr（y）;
			for?（int?x?=?0;?x?			{
				if?（rowPtr[x]）
				{
					points.push_back（Point（x?y））;
				}
			}
		}

		Vec4f?lineVec;
		fitLine（Mat（points）
			lineVec
			CV_DIST_L2???
			0????
			0.01?0.01）;???
		int?x0?=?lineVec[2];????
		int?y0?=?lineVec[3];
		int?x1?=?x0?-?200?*?lineVec[0];???
		int?y1?=?y0?-?200?*?lineVec[1];????

		cv::line（result?Point（x0?y0）?Point（x1?y1）?Scalar（0）?3）;

		cvNamedWindow（“Estimated?line“）;
		imshow（“Estimated?line“?result）;
		waitKey（0）;

	return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-02?15:19??直線檢測\
?????目錄???????????0??2017-12-02?14:50??直線檢測\.vs\
?????目錄???????????0??2017-12-02?14:50??直線檢測\.vs\直線檢測\
?????目錄???????????0??2017-12-02?14:50??直線檢測\.vs\直線檢測\v14\
?????文件???????29184??2017-12-02?15:19??直線檢測\.vs\直線檢測\v14\.suo
?????目錄???????????0??2017-11-29?16:33??直線檢測\Debug\
?????目錄???????????0??2017-12-02?14:50??直線檢測\x64\
?????目錄???????????0??2017-12-02?15:03??直線檢測\x64\Debug\
?????文件??????133120??2017-12-02?15:03??直線檢測\x64\Debug\直線檢測.exe
?????文件??????595792??2017-12-02?15:03??直線檢測\x64\Debug\直線檢測.ilk
?????文件?????1421312??2017-12-02?15:03??直線檢測\x64\Debug\直線檢測.pdb
?????文件????????1318??2017-11-29?16:32??直線檢測\直線檢測.sln
?????文件????12292096??2017-12-02?15:19??直線檢測\直線檢測.VC.db
?????目錄???????????0??2017-12-02?15:03??直線檢測\直線檢測\
?????目錄???????????0??2017-12-02?14:50??直線檢測\直線檢測\Debug\
?????文件??????543744??2017-11-29?16:33??直線檢測\直線檢測\Debug\vc140.idb
?????文件??????806912??2017-11-29?16:33??直線檢測\直線檢測\Debug\vc140.pdb
?????文件????????1643??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.log
?????文件??????326196??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.obj
?????目錄???????????0??2017-12-02?14:51??直線檢測\直線檢測\Debug\直線檢測.tlog\
?????文件?????????952??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\CL.command.1.tlog
?????文件???????19644??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\CL.read.1.tlog
?????文件?????????452??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\CL.write.1.tlog
?????文件???????????2??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\link.command.1.tlog
?????文件???????????2??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\link.read.1.tlog
?????文件???????????2??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\link.write.1.tlog
?????文件???????????0??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\unsuccessfulbuild
?????文件?????????210??2017-11-29?16:33??直線檢測\直線檢測\Debug\直線檢測.tlog\直線檢測.lastbuildstate
?????目錄???????????0??2017-12-02?14:51??直線檢測\直線檢測\x64\
?????目錄???????????0??2017-12-02?15:03??直線檢測\直線檢測\x64\Debug\
?????文件??????543744??2017-12-02?15:03??直線檢測\直線檢測\x64\Debug\vc140.idb
............此處省略15個文件信息