/**
?*?@function?cornerDemo.cpp
?*?@brief?Demo?code?for?detecting?corners?using?Harris-Stephens?method?and?Shi-Tomasi?method
?*?@author?Wei?Lan?http://blog.csdn.net/xiaowei_cqu
?*/
#include??
#include?
#include?“opencv2/imgproc/imgproc.hpp“
#include?“opencv2/core/core.hpp“
#include?“opencv2/legacy/legacy.hpp“
#include?“opencv2/nonfree/nonfree.hpp“
#include?“opencv2/highgui/highgui.hpp“
#include?“opencv2/calib3d/calib3d.hpp“
#include??
using?namespace?cv;
using?namespace?std;

?//Global?variables
Mat?src?src_graydst_norm_scaled;
int?thresh?=?110;
int?max_thresh?=?150;

int?maxCorners?=?23;
int?maxTrackbar?=?100;

char*?source_window?=?“Source?image“;
char*?corners_window?=?“Corners?detected“;

///?Function?header
void?cornerHarris_demo（?int?void*?）;
void?cornerShiTomasi_demo（?int?void*?）;

int?main（?）
{
??src?=??imread（“images\\corner.png“1）;
??cvtColor（?src?src_gray?CV_BGR2GRAY?）;

??///?Create?a?window?and?a?trackbar
??namedWindow（?source_window?CV_WINDOW_AUTOSIZE?）;
??createTrackbar（?“Harris:?“?source_window?&thresh?max_thresh?cornerHarris_demo?）;
??createTrackbar（?“ShiTomasi:“?source_window?&maxCorners?maxTrackbar?cornerShiTomasi_demo?）;??

??namedWindow（?corners_window?CV_WINDOW_AUTOSIZE?）;
??namedWindow（?source_window?CV_WINDOW_AUTOSIZE?）;

??cornerHarris_demo（?0?0?）;
??cornerShiTomasi_demo（?0?0?）;


??waitKey（0）;
??return（0）;
}

void?cornerHarris_demo（?int?void*?）
{
??Mat?dst?dst_norm;
??dst?=?Mat::zeros（?src.size（）?CV_32FC1?）;
??///?Detector?parameters
??int?blockSize?=?2;
??int?apertureSize?=?3;
??double?k?=?0.04;
??///?Detecting?corners
??cornerHarris（?src_gray?dst?blockSize?apertureSize?k?BORDER_DEFAULT?）;
??///?Normalizing
??normalize（?dst?dst_norm?0?255?NORM_MINMAX?CV_32FC1?Mat（）?）;
??convertScaleAbs（?dst_norm?dst_norm_scaled?）;?
??///?Drawing?a?circle?around?corners
??for（?int?j?=?0;?j??????{?for（?int?i?=?0;?i???????????{
????????????if（?（int）?dst_norm.at（ji）?>?thresh?）
??????????????{?
				circle（?dst_norm_scaled?Point（?i?j?）?5??Scalar（0）?-1?8?0?）;?
				circle（srcPoint（?i?j?）?5??Scalar（25500）?-1?8?0?）;
??????????????}
??????????}?
?????}????
??///?Showing?the?result
??imshow（?corners_window?dst_norm_scaled?）;
??imshow（?source_window?src?）;??
}

void?cornerShiTomasi_demo（?int?void*?）
{
??if（?maxCorners???///?Parameters?for?Shi-Tomasi?algorithm
??vector?corners;
??double?qualityLevel?=?0.01;
??double?minDistance?=?10;
??int?blockSize?=?3;
??bool?useHarrisDetector?=?false;
??double?k?=?0.04;
??///?Copy?the?source?image
??Mat?cormat;
??///?Apply?corner?detection?:Determines?strong?corners?on?an?image.
??goodFeaturesToTrack（?src_gray?
		???????corners
		???????maxCorners
		???????qualityLevel
		???????minDistance
		???????Mat（）
		???????blockSize
		???????useHarr

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----
?????文件???????26055??2002-12-01?23:38??corner.png
?????文件????????3354??2012-07-31?13:33??cornerDemo.cpp
?????文件??????887610??2012-07-30?18:44??Good?Features?to?Track.pdf
?????文件?????1129984??2012-07-30?19:09??Harris角點(diǎn)檢測(cè).ppt