#include?
#include?
#include?
#include?
#include?
#include?
#include???
#include?
#include?
using?namespace?std;
using?namespace?cv;
double?angleOfLines（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）;
void?rotateIamge（cv::Mat&?src?cv::Mat&?dst?double?angle）;
double?angleForCorrect（const?cv::Vec4i&?line）;
bool?getMinMidX（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）;
bool?getMaxMidX（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）;
bool?getMinMidY（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）;
bool?getMaxMidY（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）;
double?angle;
double?angleOfLines（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）
{
	double?moduleLine1?=?sqrt（pow（line1[0]?-?line1[2]?2）?+?pow（line1[1]?-?line1[3]?2））;
	double?moduleLine2?=?sqrt（pow（line2[0]?-?line2[2]?2）?+?pow（line2[1]?-?line2[3]?2））;
	double?dotProduct?=?（line1[2]?-?line1[0]）*（line2[2]?-?line2[0]）?+?（line1[3]?-?line1[1]）*（line2[3]?-?line2[1]）;

	return?acos（dotProduct?/?moduleLine1?/?moduleLine2）?*?180?/?CV_PI;
}
double?angleForCorrect（const?cv::Vec4i&?line）
{
	Vec4i?unitXVector（0?0?1?0）;
	angle?=?angleOfLines（unitXVector?line）;??//?here?angle?belongs?to?[0?pi/2]
											??//?@attention:?the?increment?direction?of?X?and?Y?axis?of?OpenCV?is?different?from?usual?rectangular?coordinate?system.?The?origin?point?is?in?the?upper?left?corner?of?the?image
	if?（angle?	{
		//?consider?in?the?horizontal?direction
		if?（line[1]?>?line[3]）
		{
			angle?=?-angle;
		}
	}
	else
	{
		//?consider?in?the?vertical?direction
		if?（line[1]?>?line[3]）
		{
			angle?=?90?-?angle;
		}
		else
		{
			angle?=?angle?-?90;
		}
	}
	cout?<	return?angle;
}
bool?getMinMidX（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）
{
	return?（line1[0]?+?line1[2]）?}
bool?getMaxMidX（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）
{
	return?（line1[0]?+?line1[2]）?>?（line2[0]?+?line2[2]）;
}

/**
*?@brief?comparison?function?for?sort?sort?vector?from?small?to?large?accodoring?to?y?of?the?midpoint?of?each?element
*?@param?line1
*?@param?line2
*?@return
*/
bool?getMinMidY（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）
{
	return?（line1[1]?+?line1[3]）?}

/**
*?@brief?comparison?function?for?sort?sort?vector?from?large?to?small?accodoring?to?y?of?the?midpoint?of?each?element
*?@param?line1
*?@param?line2
*?@return
*/
bool?getMaxMidY（const?cv::Vec4i&?line1?const?cv::Vec4i&?line2）
{
	return?（line1[1]?+?line1[3]）?>?（line2[1]?+?line2[3]）;
}

void?rotateIamge（cv::Mat&?src?cv::Mat&?dst?double?angle）
{
	cv::Point2f?center（src.cols?/?2?src.rows?/?2）;
	cv::Mat?rot?=?getRotationMatrix2D（center?angle?1）;
	cv::Rect?box?=?RotatedRect（center?src.size（）?angle）.boundingRect（