代码如下,运行下就看到了,真是晕死,不知道怎么会偏的?而且有个小圆没有识别出来。
请高手帮忙下,非常感谢!
#include "stdafx.h"
#include <cv.h>
#include <highgui.h>
#include <math.h>
#include <iostream>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
IplImage* img;
img=cvLoadImage("circle.jpg", 1);
IplImage* gray = cvCreateImage( cvGetSize(img), 8, 1 );
CvMemStorage* storage = cvCreateMemStorage(0);
cvCvtColor( img, gray, CV_BGR2GRAY );
cvSmooth( gray, gray, CV_GAUSSIAN, 9, 9 ); // smooth it, otherwise a lot of false circles may be detected
CvSeq* circles = cvHoughCircles( gray, storage, CV_HOUGH_GRADIENT, 2, gray->height/4, 200,100,5,200 );
int i;
for( i = 0; i < circles->total; i++ )
{
float* p = (float*)cvGetSeqElem( circles, i );
cvCircle( img, cvPoint(cvRound(p[0]),cvRound(p[1])), 3, CV_RGB(0,255,0), -1, 8, 0 );
cvCircle( img, cvPoint(cvRound(p[0]),cvRound(p[1])), cvRound(p[2]), CV_RGB(255,0,0), 3, 8, 0 );
cout<<"圆心坐标x= "<<cvRound(p[0])<<endl<<"圆心坐标y= "<<cvRound(p[1])<<endl;
cout<<"半径="<<cvRound(p[2])<<endl;
}
cout<<"圆数量="<<circles->total<<endl;
cvNamedWindow( "circles", 1 );
cvShowImage( "circles", img );
cvWaitKey(0);
return 0;
}