Main.cpp

#include <iostream>
#include <string>
#include <opencv2/opencv.hpp>
#include <opencv2/nonfree/nonfree.hpp>

using namespace std;
using namespace cv;

int main(int argc, char* argv[]) {
  // load color image
	const char* imagename = argv[1] ;
	Mat colorImage = imread(imagename, 1);
	if (colorImage.empty()) {
		cout << "file not found" << endl;
		return -1;
	}


	namedWindow("img", CV_WINDOW_AUTOSIZE);
	imshow("img", colorImage);
	waitKey(0);

	return 0;
}