OpenCV学习2--图片的加载，修改与保存

#include<iostream>
#include<opencv2/core/core.hpp>
#include<highgui/highgui.hpp>

using namespace cv;
using namespace std;

int main()
{
cout<<"Hello,old driver：";
Mat img = imread("lenfull.jpg",0);
if(img.empty())
{
cout << "Image Load Failed"<< endl;
//system("pause");
return -1;
}
//创建一个名字为MyWindow的窗口
namedWindow("MyWindow", CV_WINDOW_AUTOSIZE);
//在MyWindow的窗中中显示存储在img中的图片
imshow("MyWindow", img);
//等待直到有键按下
waitKey(0);
//销毁MyWindow的窗口
destroyWindow("MyWindow");
return 0;
}