#include <stdio.h>
#include <iostream> 
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <opencv2/opencv.hpp>
#include "opencv2/imgcodecs.hpp"

using namespace cv;
/** @function main */
int main(int argc, char** argv)
{
	Mat img1 = imread("d:/image/eight_pepper.tif", IMREAD_GRAYSCALE);
	Mat img2 = imread("d:/image/eight_salt.tif", IMREAD_GRAYSCALE);
	Mat img_out;
	subtract(img2, img1, img_out);
	//img_out = img2 - img1;
	imshow("img1", img1);
	imshow("img2", img2);
	imshow("result", img_out);
	waitKey(); //
	
}
/** @function readme */