#include?
#include?
#include
#include
using?namespace?cv;
using?namespace?std;
//https://zhuanlan.zhihu.com/p/24591720

void?sort_point（vector??&?vpvector??&?dest_vp）
{
????Point2f?temp;
????temp.x=0;temp.y=0;
????dest_vp.push_back（temp）;
????dest_vp.push_back（temp）;
????dest_vp.push_back（temp）;
????dest_vp.push_back（temp）;
????for（int?i=0;i????{
????????if（vp[i].x?????????if（vp[i].x?>?460.8/2?&&?vp[i].y<328.8/2）{dest_vp[1].x=vp[i].x;?dest_vp[1].y=vp[i].y;}
????????if（vp[i].x?328.8/2）{dest_vp[2].x=vp[i].x;?dest_vp[2].y=vp[i].y;}
????????if（vp[i].x?>?460.8/2?&&?vp[i].y>328.8/2）{dest_vp[3].x=vp[i].x;?dest_vp[3].y=vp[i].y;}
????}
}

int?main（int?argc?char?*argv[]）
{
????????QCoreApplication?a（argc?argv）;
????????namedWindow（“erzhihua“CV_WINDOW_NORMAL）;
????????Mat?imageSource=imread（“chessa1.jpg“）;
????????cvtColor（imageSourceimageSourceCV_BGR2GRAY）;
????????resize（imageSourceimageSourceSize（460.8328.8））;

????????{
????????imshow（“yuanshi“imageSource）;
????????waitKey（0）;
????????Mat?image;
????????imageSource.copyTo（image）;
????????GaussianBlur（imageimageSize（99）1）;??//濾波
????????threshold（imageimage210255CV_THRESH_BINARY）;??//二值化
????????imshow（“erzhihua“image）;
????????waitKey（0）;
????????Mat?element=getStructuringElement（2Size（99））;??//膨脹腐蝕核
????????//morphologyEx（imageimageMORPH_OPENelement）;
????????for（int?i=0;i<5;i++）
????????{
????????????erode（imageimageelement）;
????????????i++;
????????}
????????imshow（“fushi?s“image）;
????????Mat?image1;
????????erode（imageimage1element）;
????????element=getStructuringElement（2Size（6060））;??//膨脹腐蝕核
????????dilate（imageimageelement）;
????????dilate（image1image1element）;
????????image1=image-image1;
????????imshow（“fushi?s“image）;
????????waitKey（0）;
????????imshow（“bianjie“image1）;
????????waitKey（0）;
????????//尋找直線?邊界定位也可以用findContours實現
????????vector?lines;
?????????HoughLines（image1lines1CV_PI/15017500）;
????????Mat?DrawLine=Mat::zeros（image1.size（）CV_8UC1）;
????????for（int?i=0;i????????{
????????????float?rho=lines[i][0];
????????????float?theta=lines[i][1];
????????????Point?pt1pt2;
????????????double?a=cos（theta）b=sin（theta）;
????????????double?x0=a*rhoy0=b*rho;
????????????pt1.x=cvRound（x0+1000*（-b））;
????????????pt1.y=cvRound（y0+1000*a）;
????????????pt2.x=cvRound（x0-1000*（-b））;
????????????pt2.y=cvRound（y0-1000*a）;
????????????line（DrawLinept1pt2Scalar（255）1CV_AA）;
????????}
????????imshow（“zhixian“DrawLine）;
????????waitKey（0）;
????????Point2f?P1[4];
????????Point2f?P2[4];
????????vectorcorners;
????????vectorcorners_sort;
????????goodFeaturesToTrack（DrawLinecorners40.110Mat（））;?//角點檢測
????????sort_point（cornerscorners_sort）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-06-21?16:50??jiaozheng\
?????目錄???????????0??2018-06-21?16:47??jiaozheng\bin_debug\
?????文件?????5825536??2018-05-08?00:26??jiaozheng\bin_debug\Qt5Core.dll
?????文件????13222912??2018-05-08?00:26??jiaozheng\bin_debug\Qt5Cored.dll
?????文件?????6052352??2018-01-16?19:32??jiaozheng\bin_debug\Qt5Gui.dll
?????文件????13869568??2018-01-16?19:32??jiaozheng\bin_debug\Qt5Guid.dll
?????文件?????1228800??2018-01-16?19:31??jiaozheng\bin_debug\Qt5Network.dll
?????文件???????43008??2018-01-18?13:58??jiaozheng\bin_debug\Qt5TextToSpeech.dll
?????文件??????134144??2018-01-18?13:58??jiaozheng\bin_debug\Qt5TextToSpeechd.dll
?????文件?????5588992??2018-01-16?19:40??jiaozheng\bin_debug\Qt5Widgets.dll
?????文件????11732992??2018-01-16?19:40??jiaozheng\bin_debug\Qt5Widgetsd.dll
?????文件???????73877??2018-06-20?14:10??jiaozheng\bin_debug\chessa1.jpg
?????文件??????151958??2018-06-21?16:50??jiaozheng\bin_debug\jiaozheng.bmp
?????文件??????140288??2018-06-21?16:50??jiaozheng\bin_debug\jiaozheng.exe
?????文件?????3042640??2018-06-21?16:50??jiaozheng\bin_debug\jiaozheng.ilk
?????文件?????4878336??2018-06-21?16:50??jiaozheng\bin_debug\jiaozheng.pdb
?????文件?????1349632??2018-01-16?19:47??jiaozheng\bin_debug\qwindows.dll
?????目錄???????????0??2018-06-21?16:39??jiaozheng\bin_release\
?????文件???????73877??2018-06-20?14:10??jiaozheng\bin_release\1.jpg
?????文件???????31232??2018-06-20?14:13??jiaozheng\bin_release\jiaozheng.exe
?????文件????????1262??2018-06-20?14:04??jiaozheng\jiaozheng.pro
?????文件???????23975??2018-06-21?16:50??jiaozheng\jiaozheng.pro.user
?????文件????????4231??2018-06-21?16:50??jiaozheng\main.cpp