opencv图像切割

#include "opencv2/core/core.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"

#include <iostream>

using namespace std;
using namespace cv;

int main(int argc, char** argv)
{
    Mat src_img, left_img, right_img;
    int frame_id = 0;
    int framenumber = 100;

    int imageHeight;
    int imageWidth;

    while (frame_id < framenumber)
    {
        char filename[100], left_name[100], right_name[100];
        sprintf_s(filename, "E:/stereo_data/ZED/0105/zed-cali_1080/%02d.png", frame_id + 1);  //获取文件名
        cout << "filename is:" << filename << endl;

        src_img = imread(filename);
        if (src_img.empty())
        {
            fprintf(stderr, "Can not load image %s\n", filename);
            return -1;
        }
    
        //非必要i
　　　　　mageHeight = src_img.rows;
        imageWidth = src_img.cols;
        printf("imageHeight = %d,imageWidth = %d \n", imageHeight,imageWidth);
        imshow("src_img", src_img);

        left_img = src_img(Range(0, 1080), Range(0, 1920));    //Range的两个参数范围为左包含，右不包含，0到1079行、0到1919列的矩形区域
        right_img = src_img(Range(0, 1080), Range(1920, 3840));
        imshow("left_img", left_img);
        imshow("right_img", right_img);

        //sprintf_s(left_name, "left_%02d.png", frame_id);
        //sprintf_s(right_name, "right_%02d.png", frame_id);
        imwrite(cv::format("left_name_%02d.png", frame_id), left_img);
        imwrite(cv::format("right_name_%02d.png", frame_id), right_img);
        frame_id++;
    }
    return 0;
}