学步园

    IplImage* dst=cvLoadImage("f://lena.jpg",1); //声明IplImage指针
    IplImage* pImg=cvLoadImage("f://test2.png",1);

  
     CvRect rect_t=cvRect(10,10,pImg->width,pImg->height);
        //10,10为起点
        cvSetImageROI(dst,rect_t);
        cvCopy(pImg,dst,NULL);
        cvResetImageROI(dst);

        cvNamedWindow( "Image", 1 ); //创建窗口    
        cvShowImage( "Image", dst ); //显示图像
        cvWaitKey(0); //等待按键
        cvDestroyWindow( "Image" );//销毁窗口      
        cvReleaseImage( &dst ); //释放图像