我正在使用此代码检测视频文件中的圆圈
#include <sstream>
#include <string>
#include <iostream>
#include <vector>
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <opencv\cv.h>
#include <opencv\highgui.h>
#include <stdlib.h>
#include <stdio.h>
using namespace std;
using namespace cv;
int main(int argc, char** argv) {
using namespace cv;
Mat src;
VideoCapture capture;
capture.open("movingBall.wmv");
capture.read(src);
capture.set(CV_CAP_PROP_FRAME_HEIGHT, 480);
capture.set(CV_CAP_PROP_FRAME_WIDTH, 640);
if (!src.data) {
std::cout << "ERROR:\topening image" << std::endl;
return -1;
}
cv::namedWindow("image1", CV_WINDOW_AUTOSIZE);
cv::namedWindow("image2", CV_WINDOW_AUTOSIZE);
while (true){
capture.read(src);
cv::imshow("image1", src);
Mat src_gray2;
cvtColor(src, src_gray2, CV_BGR2GRAY);
GaussianBlur(src_gray2, src_gray2, cv::Size(9, 9), 2, 2);
vector<Vec3f> circles;
HoughCircles(src_gray2, circles, CV_HOUGH_GRADIENT,
2, // accumulator resolution (size of the image / 2)
5, // minimum distance between two circles
70, // Canny high threshold
100, // minimum number of votes
0, 0); // min and max radius
std::cout << circles.size() << std::endl;
std::cout << "end of test" << std::endl;
for (size_t i = 0; i < circles.size(); i++)
{
Point center(cvRound(circles[i][0]), cvRound(circles[i][1]));
int radius = cvRound(circles[i][2]);
circle(src, center, 3, Scalar(0, 255, 0), -1, 8, 0);
// circle outline
circle(src, center, radius, Scalar(0, 0, 255), 3, 8, 0);
}
/*std::vector<cv::Vec3f>::
const_iterator itc = circles.begin();
while (itc != circles.end()) {
cv::circle(src_gray2,
cv::Point((*itc)[0], (*itc)[1]), // circle centre
(*itc)[2], // circle radius
cv::Scalar(0,0,0), // color
2); // thickness
++itc;
}*/
cv::imshow("image2", src_gray2);
cvWaitKey(33);
}
return 0;
}
我面临的问题是，尽管我更改了HoughCircle参数，但我无法在视频文件中检测到任何圆圈。
是否有可能创建一个跟踪栏来监控这些参数？
对于图像，我可以看到被检测到的圆圈，但它不是我想要的圆圈，这仍然可以。
在Win 8笔记本电脑上使用OPENCV3.0.0和MS Visual Studio 2013