FAST特征点检测features2D

#include <opencv2/core/core.hpp>

#include <opencv2/features2d/features2d.hpp>

#include <opencv2/highgui/highgui.hpp>

#include <vector>

using namespace cv;

void main()

{

	Mat image;

	image = imread("d:\\p.jpg");

	// vector of keyPoints

	std::vector<KeyPoint> keyPoints;

	// construction of the fast feature detector object

	FastFeatureDetector fast(40);	// 检测的阈值为40

	// feature point detection

	fast.detect(image,keyPoints);

	drawKeypoints(image, keyPoints, image, Scalar::all(255), DrawMatchesFlags::DRAW_OVER_OUTIMG);

	imshow("FAST feature", image);

	cvWaitKey(0);

}