#include "opencv2/core.hpp"
#include <opencv2/imgproc.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>
#include <iostream>


int main(int argc,char* argv[])
{	
	//kep beolvasasa, atmeretezese
	cv::Mat I_origin = cv::imread("C:/Users/student/Downloads/kacsa.jpg",1);
	cv::Mat I_resized;
	cv::resize(I_origin,I_resized,cv::Size(0,0),0.75,0.75);
	
	//Box filter
	int value = 7; #always odd
	cv::Mat I_box;
	cv::boxFilter(I_resized, I_box,-1, cv::Size(value, value));
	cv::imshow("box",I_box);
	
	//Gauss filter
	float sigma_value = 1.05;
	cv::Mat I_gauss;
    cv::GaussianBlur(I_resized, I_gauss,cv::Size(value, value),sigma_value);
	cv::imshow("gauss",I_gauss);
	
	//median filter
	cv::Mat I_median;
	cv::medianBlur(I_resized, I_median,value);
	cv::imshow("median",I_median);
	
	//unsharp
	
	cv::Mat I_unsharped;
	cv::addWeighted(I_resized, 1.5, I_gauss, -0.5, 0,I_unsharped);
	cv::imshow("unsharp",I_unsharped);
	cv::waitKey();
	return 0;
}