OpenCV设置ＲＯＩ

#include "stdafx.h"
#include <iostream>
#include <opencv.hpp>
 
using namespace cv;
 
int _tmain(int argc, _TCHAR* argv[])
{
    Mat srcImage = imread("./1.bmp");
    Mat roiImage;
    Rect rect(100,100,100,100);
    srcImage(rect).copyTo(roiImage);
    imshow("roi",roiImage);
    waitKey(0);
    return 0;
}