kepfeldolgozas/ora4/main.cpp

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

using namespace cv;

int main(){
    Mat img = imread("dark_img.jpg", IMREAD_GRAYSCALE);
    imshow("img", img);
    Histo::showHisto(img);

    double ah, fh;
    minMaxLoc(img, &ah, &fh);

    fh = 30;

    Mat dest = (ah == fh) ? img.clone() : (img-ah) * 255 / (fh-ah);

    imshow("dest", dest);
    Histo::showHisto(dest, "eredmeny");

    waitKey();
    return 0;
}