История изменений

#include "opencv2/core/core.hpp"
#include "opencv2/contrib/contrib.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/objdetect/objdetect.hpp"

#include <iostream>
#include <fstream>
#include <sstream>

using namespace cv;
using namespace std;


int main(int argc, char* argv[])
{
	Mat frame, gray;
	VideoCapture capture;
	int dev_id = 0; //Device number.

	capture.open(dev_id);
	if (!capture.isOpened()){
		cerr << "Failed to open video device "
			<< dev_id << " \n" << endl;
		return 1;
	}

	
	while (frame.empty()){
		capture >> frame;
	}
	

	int MAX_COUNT = 10;
	TermCriteria termcrit(TermCriteria::COUNT + TermCriteria::EPS,
		20, 0.3);
	// We use two sets of points in order to swap
	// pointers.
	vector<Point2f> points;
	Size subPixWinSize(10, 10), winSize(100, 100);

	//Convert image to gray scale.
	cvtColor(frame, gray, CV_RGB2GRAY);

	//Feature detection is performed here...
	goodFeaturesToTrack(gray, points, MAX_COUNT, 0.01, 10, Mat(), 3, 0, 0.04);
	try{
		cornerSubPix(gray, points, subPixWinSize, Size(-1, -1), termcrit);
	}
	catch (Exception &e){
		cout << e.msg << endl;
	}
	cout << points.size()<<endl;
	/*for (int i = 0; i < 2000; ++i)
		circle(gray, points[i], 10, Scalar(255, 255, 255));*/
	imshow("Camera check", gray);
	char key = (char)waitKey(0);

	return 0;
}

#include "opencv2/core/core.hpp"
#include "opencv2/contrib/contrib.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/objdetect/objdetect.hpp"

#include <iostream>
#include <fstream>
#include <sstream>

using namespace cv;
using namespace std;


int main(int argc, char* argv[])
{
	Mat frame, gray;
	VideoCapture capture;
	int dev_id = 0; //Device number.

	capture.open(dev_id);
	if (!capture.isOpened()){
		cerr << "Failed to open video device "
			<< dev_id << " \n" << endl;
		return 1;
	}

	
	while (frame.empty()){
		capture >> frame;
	}
	

	int MAX_COUNT = 10;
	TermCriteria termcrit(TermCriteria::COUNT + TermCriteria::EPS,
		20, 0.3);
	// We use two sets of points in order to swap
	// pointers.
	vector<Point2f> points;
	Size subPixWinSize(10, 10), winSize(100, 100);

	//Convert image to gray scale.
	cvtColor(frame, gray, CV_RGB2GRAY);

	//Feature detection is performed here...
	goodFeaturesToTrack(gray, points, MAX_COUNT, 0.01, 10, Mat(), 3, 0, 0.04);
	try{
		cornerSubPix(gray, points, subPixWinSize, Size(-1, -1), termcrit);
	}
	catch (Exception &e){
		cout << e.msg << endl;
	}
	cout << points.size();
	/*for (int i = 0; i < 2000; ++i)
		circle(gray, points[i], 10, Scalar(255, 255, 255));*/
	imshow("Camera check", gray);
	char key = (char)waitKey(0);

	return 0;
}