这不是很好,但它展示了如何到达那里:
IplImage* src = cvLoadImage(argv[1], CV_LOAD_IMAGE_UNCHANGED);
IplImage* gray = cvCreateImage(cvGetSize(src), IPL_DEPTH_8U, 1);
cvCvtColor(src, gray, CV_BGR2GRAY);
cvSmooth(gray, gray, CV_GAUSSIAN, 7, 7);
IplImage* cc_img = cvCreateImage(cvGetSize(gray), gray->depth, 3);
cvSetZero(cc_img);
CvScalar(ext_color);
cvCanny(gray, gray, 10, 30, 3);
CvMemStorage* storage = cvCreateMemStorage(0);
CvSeq* circles = cvHoughCircles(gray, storage, CV_HOUGH_GRADIENT, 1, src->height/6, 100, 50);
cvCvtColor(gray, src, CV_GRAY2BGR);
for (size_t i = 0; i < circles->total; i++)
{
float* p = (float*)cvGetSeqElem(circles, i);
cv::Point center(cvRound(p[0]), cvRound(p[1]));
int radius = cvRound(p[2]);
cvCircle(cc_img, center, radius+1, CV_RGB(0,0,255), 2, 8, 0 );
}
CvMemStorage *mem;
mem = cvCreateMemStorage(0);
CvSeq *contours = 0;
cvCvtColor(cc_img, gray, CV_BGR2GRAY);
int n = cvFindContours(gray, mem, &contours, sizeof(CvContour), CV_RETR_CCOMP, CV_CHAIN_APPROX_NONE, cvPoint(0,0));
for (; contours != 0; contours = contours->h_next)
{
ext_color = CV_RGB( rand()&255, rand()&255, rand()&255 );
cvDrawContours(cc_img, contours, ext_color, CV_RGB(0,0,0), -1, CV_FILLED, 8, cvPoint(0,0));
}
cvSaveImage("out.png", cc_img);
![在此输入图片描述](https://istack.dev59.com/mSNVp.webp)