萌新學習手冊 surf特徵檢測

2021-08-28 15:09:06 字數 911 閱讀 4070

演算法原理:

#includeusing namespace xfeatures2d;
嗯,在開頭要包含這個庫然後申明命名空間

src = imread("c:/users/pbiha/desktop/image/1.png",imread_grayscale);
imread_grayscale就是0,表示讀入一張灰度影象

ptr<>
這是乙個智慧型指標像指標一樣的用,但是更加方便記憶體的管理

#include#include#includeusing namespace xfeatures2d;

using namespace std;

using namespace cv;

int main()

namedwindow("input", cv_window_autosize);

imshow("input", src);

int minhessian = 300;

ptrdetector = surf::create(minhessian);

vectorketpoints;

detector->detect(src, ketpoints, mat());

drawkeypoints(src, ketpoints, result_img, scalar::all(-1),drawmatchesflags::default);

namedwindow("outputimg", cv_warp_fill_outliers);

imshow("outputimg", result_img);

waitkey(0);

return 0;

}

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