opencv每隔幾秒在圖片上顯示一個點 (程式碼)
阿新 • • 發佈:2019-02-10
<span style="font-size:18px;">#include<Windows.h> #include<opencv2/imgproc/imgproc.hpp> #include<opencv2/highgui/highgui.hpp> #include<opencv2/objdetect/objdetect.hpp> #include<vector> #include<iostream> #include<string> using namespace std; using namespace cv; int main() { const Size sizepx(900, 900); Mat screen(sizepx.width, sizepx.height, CV_32FC3); screen.setTo(Scalar(255, 0, 0)); for (int i = 150; i < sizepx.height; i += 300) { for (int j = 150; j < sizepx.width; j += 300) { Point p = Point(i, j); double t = (double)getTickCount(); ((double)getTickCount() - t); circle(screen, p, 8, Scalar(0, 255, 0), -1); imshow("螢幕", screen); waitKey(3000); cout << p.x << ' ' << p.y << endl; } } /*waitKey(0);*/ return 0; }</span>