cv::Exception at memory location 0x0000000296AFDAD0 in visual studio - c++

Question

I'm trying to get eigenvalues from an image matrix. I tried with a streaming video and did not get an error. When I tried to find eigenvalues of a stored image I get cv::Exception at memory location 0x0000000296AFDAD0 error.
#include <opencv2/objdetect/objdetect.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>
#include <iostream>
#include <stdio.h>
using namespace std;
using namespace cv;
void calceigen(Mat covarm){
Mat eigenvalues;
Mat eigenvectors;
eigen(covarm, eigenvalues, eigenvectors);
cout << eigenvalues;
cout << eigenvectors;
}
void covard(Mat g)
{
Mat covarm;
Mat b;
calcCovarMatrix(g, covarm, b, CV_COVAR_COLS, CV_64F);
calceigen(covarm);
}
int main(int argc, const char** argv)
{
cv::Mat image = cv::imread("C:/Users/DellPc/Desktop/images1.jpg");
//setup image files used in the capture process
Mat grayscaleFrame;
Mat graysc;
//convert captured image to gray scale and equalize
//cvtColor(image, grayscaleFrame, CV_BGR2GRAY);
//resize(grayscaleFrame, graysc, Size(16, 16), 0, 0, INTER_LANCZOS4);
int rows = image.rows;
int cols = image.cols;
cv::Size s = image.size();
rows = s.height;
cols = s.width;
cout << rows << endl;
cout << cols << endl;
covard(image);
//find faces and store them in the vector array
imshow("small", image);
waitKey(33);
return 0;
}