opencv绘制图和文字

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

#include <istream> #include <opencv2/opencv.hpp>   using namespace cv; using namespace std;   int main(int argc, char **argv) {     Mat src;     //    加载图片     src = imread("../../picture/bg1.webp", 1);     if (!src.data) {         printf("No image data \n");         return -1;     }     // 画线     Point p1 = Point(0,0),p2=Point(550,190);     Scalar line_color =  Scalar(0,0,255);     line(src,p1,p2,line_color,2,LINE_8);     // 画框     Rect rect = Rect(400,0,350,390);     Scalar rect_color = Scalar(255,0,0);     rectangle(src,rect,rect_color,2,LINE_8);     // 画椭圆     Scalar ellipse_color = Scalar(0,255,0);     ellipse(src,Point(575,190),Size(190,170),90,0,360,ellipse_color,2,LINE_8);     // 画圆     Scalar circle_color = Scalar(255,255,0);     circle(src,Point(575,190),100,circle_color,1,LINE_8);     // 画多边形     Point pts[1][5];     pts[0][0] = Point(100,100);     pts[0][1] = Point(100,200);     pts[0][2] = Point(200,200);     pts[0][3] = Point(200,100);     pts[0][4] = Point(100,100);     const Point* ppts[] = {pts[0]};     int npt[] = {5};     Scalar pts_color = Scalar(255,0,255);     fillPoly(src,ppts,npt,1,pts_color,LINE_8);     // 画字符     Scalar text_color = Scalar(0,255,255);     putText(src,"Beautiful Girl",Point(450,450),FONT_HERSHEY_COMPLEX,1.0,text_color,1,LINE_8);     namedWindow("src", WINDOW_AUTOSIZE);     imshow("src", src);     //    等待按键     waitKey(0);     return 0; }