#include <iostream>

#include <opencv2/opencv.hpp>


#include <stdlib.h>

#include <stdio.h>


using namespace std;

using namespace cv;



int main()

{

Mat image, image_gray;

image = cv::imread("image/humming_bird.jpg", CV_LOAD_IMAGE_COLOR);


if (!image.data) { return -1; }


cvtColor(image, image_gray, CV_RGB2GRAY);


namedWindow("Image Grayed", CV_WINDOW_AUTOSIZE);

imshow("Image Grayed", image_gray);

waitKey();


return 0;

}


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