opencv 截图并保存

#include "opencv2\opencv.hpp"
#include <iostream>

using namespace cv;

int main()
{
    Mat image;
    image = imread("../../bin/data/1.jpg");
        
    //截图区域(起点(650, 200)-宽高(600, 700))
    Rect rect_car(650, 200, 600, 700);
    Mat image_car = image(rect_car);

    char image_name[20];
    sprintf_s(image_name, "%s%s", "image截图", ".jpg");
    std::string str(image_name);

    imwrite("../../bin/data/" + str, image_car);
    waitKey(0);
}