This commit is contained in:
USW
2025-05-21 12:11:58 +09:00
parent 9ca329482a
commit d65e1aeed5
13 changed files with 922 additions and 0 deletions

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63
ch14/corners/main.cpp Normal file
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#include <iostream>
#include "opencv2/opencv.hpp"
using namespace std;
using namespace cv;
void corner_harris() {
Mat src = imread("../../resources/images/building.jpg", IMREAD_GRAYSCALE);
Mat harris;
cornerHarris(src, harris, 3, 3, 0.04);
Mat harris_norm;
normalize(harris, harris_norm, 0, 255, NORM_MINMAX, CV_8U);
Mat dst;
cvtColor(src, dst, COLOR_GRAY2BGR);
for (int j = 1; j < harris.rows - 1; j++) {
for (int i = 1; i < harris.cols - 1; i++) {
if (harris_norm.at<char>(j, i) > 120) {
if (harris.at<float>(j, i) > harris.at<float>(j - 1, i) &&
harris.at<float>(j, i) > harris.at<float>(j + 1, i) &&
harris.at<float>(j, i) > harris.at<float>(j, i - 1) &&
harris.at<float>(j, i) > harris.at<float>(j, i + 1)) {
circle(dst, Point(i, j), 5, Scalar(0, 0, 255), 2);
}
}
}
}
imshow("src", src);
imshow("harris_norm", harris_norm);
imshow("dst", dst);
waitKey(0);
destroyAllWindows();
}
void corner_fast() {
Mat src = imread("../../resources/images/building.jpg", IMREAD_GRAYSCALE);
vector<KeyPoint> keypoints;
FAST(src, keypoints, 60, true);
Mat dst;
cvtColor(src, dst, COLOR_GRAY2BGR);
for (KeyPoint kp : keypoints) {
Point pt(cvRound(kp.pt.x), cvRound(kp.pt.y));
circle(dst, pt, 5, Scalar(0, 0, 255), 2);
}
imshow("src", src);
imshow("dst", dst);
waitKey(0);
destroyAllWindows();
}
int main() {
corner_fast();
}