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C++ opencv小练习绘制点,直线,圆,椭圆等基本图像
阅读量:258 次
发布时间:2019-03-01

本文共 916 字,大约阅读时间需要 3 分钟。

#include "opencv2/highgui/highgui.hpp"#include "opencv2/imgproc/imgproc.hpp"#include 
#include
using namespace std;using namespace cv;int main(){ // 设置窗口 Mat img = Mat::zeros(Size(800, 600), CV_8UC3); img.setTo(255); // 设置屏幕为白色 Point p1(100, 100); // 点p1 Point p2(758, 50); // 点p2 // 画直线函数 line(img, p1, p2, Scalar(0, 0, 255), 2); // 红色 line(img, Point(300, 300), Point(758, 400), Scalar(0, 255, 255), 3); Point p(20, 20);//初始化点坐标为(20,20) circle(img, p, 1, Scalar(0, 255, 0), -1); // 画半径为1的圆(画点) Point p4; p4.x = 300; p4.y = 300; circle(img, p4, 100, Scalar(120, 120, 120), -1); int thickness = 3; int lineType = 8; double angle = 30; //椭圆旋转角度 ellipse(img, Point(100, 100), Size(90, 60), angle, 0, 360, Scalar(255, 255, 0), thickness, lineType); // 画矩形 Rect r(250, 250, 120, 200); rectangle(img, r, Scalar(0, 255, 255), 3); imshow("画板", img); waitKey(); return 0;}

 

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