How to save an image with JPEG output in opencv 3.2.0?

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Hello, I am using opencv 3.2.0 and I simply want to read an image and simple save the same image to JPEG output with compression ratio of 75%. There is an example for PNG format: http://docs.opencv.org/trunk/d4/da8/g... . I use the following instructions:

#include <opencv2/core.hpp>
#include <opencv2/opencv.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>

#pragma comment(lib, "opencv_world320.lib")
#pragma comment(lib, "opencv_world320d.lib")

using namespace std;
using namespace cv;

int main()
{
    /************************************************************
    Declaring Variables
    ************************************************************/
    int x, y;
    Mat my_img;
    vector<int> compression_params;
    /************************************************************
    load and dispaly an image
    ************************************************************/
    my_img = imread("E:/Standard_Images/goldhill.jpg", CV_LOAD_IMAGE_COLOR);
    cout << "The image dimensions:" << my_img.rows << "*" << my_img.cols << endl;
    cout << "The number of the channels:" << my_img.channels() << endl;
    cout << "The image depth: " << my_img.depth() << endl;
    namedWindow("Lena", WINDOW_AUTOSIZE);
    imshow("Lena", my_img);
    waitKey(0);
    destroyWindow("Lena");
    /************************************************************
    Compress the image with JPEG and write into a new file
    ************************************************************/
    compression_params.push_back(CV_IMWRITE_JPEG_QUALITY);
    compression_params.push_back(75);
    bool bSuccess = imwrite("E:/Standard_Images/My_Image.jpg", my_img, compression_params);
    if (!bSuccess)
    {
        cout << "Couldn't save the file" << endl;
    }
    else
    {
        namedWindow("The Saved file", CV_WINDOW_AUTOSIZE);
        Mat openImage = imread("example.jpg", CV_LOAD_IMAGE_UNCHANGED);
        imshow("The Saved file", openImage);
    }
    getchar();
    return 1;
}

But it fails to save the output image and the following error is issued: "Exception thrown at 0x00007FFF08DC86C2 (opencv_world320.dll) in ConsoleApplication1.exe: 0xC0000005: Access violation reading location 0x0000020F4BADF000." Do you have any idea about how to save an image with JPEG format? Thanks a lot for your help