opencv blob圆心检测

#include "stdafx.h"

#include <opencv2/opencv.hpp>
#include <opencv2\features2d.hpp>
#include <opencv_modules.hpp>
//#include <opencv2/nonfree/nonfree.hpp>
//#include <opencv2/nonfree/features2d.hpp>

using namespace cv;

void main()
{
Mat image = imread("features.jpg");
Mat descriptors;
vector<KeyPoint> keypoints;
// 新版本2.4.0方法
//initModule_nonfree();

//Ptr<FeatureDetector> detector = FeatureDetector::create( "GFTT" );
// detector->detect( image, keypoints );  

// 2.3.1方法
//  SiftFeatureDetector sift2(0.06f, 10.0);
//  sift2.detect(imageGray, keypoints);

SimpleBlobDetector::Params params;
//params.minThreshold = 10;
//params.maxThreshold = 100;
//params.thresholdStep = 10;

//params.minArea = 10; 
//params.minConvexity = 0.3;
//params.minInertiaRatio = 0.01;

//params.maxArea = 8000;
//params.maxConvexity = 10;

//params.filterByColor = false;
//params.filterByCircularity = false;


SimpleBlobDetector blobDetector(params);
blobDetector.create("SimpleBlob");
blobDetector.detect(image, keypoints);

drawKeypoints(image, keypoints, image, Scalar(255, 0, 0));

imshow("Blob", image);
imwrite("features_blob.png", image);
waitKey();
}