OpenCV基础几何绘图和文字输出

#include <highgui.h>using namespace std;CvFont font;int main(){IplImage *img = cvCreateImage( cvSize(320,480),IPL_DEPTH_8U,3 );cvLine(img,cvPoint(10,10),cvPoint(100,100),cvScalar(0,255,255));cvRectangle(img,cvPoint(100,10),cvPoint(150,30),cvScalar(245,250,0));cvCircle(img,cvPoint(200,200),50,cvScalar(0,0,0));cvInitFont(&font,CV_FONT_HERSHEY_COMPLEX,1,1,1,2,8);cvPutText(img,"Hello World!",cvPoint(10,300),&font,cvScalar(255,250,0));cvNamedWindow("Example1",CV_WINDOW_AUTOSIZE);cvShowImage("Example1",img);cvWaitKey(0);cvDestroyWindow("Example1");cvReleaseImage( &img );return 0; }

运行结果：