before ora4

ora4/main.cpp

@@ -0,0 +1,24 @@
+#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("debrecen_deep.png", IMREAD_GRAYSCALE);
+    imshow("img", img);
+    Histo::showHisto(img);
+
+    double ah, fh;
+    minMaxLoc(img, &ah, &fh);
+
+    Mat dest = (ah == fh) ? img.clone() : (img-ah) * 255 / (fh-ah);
+
+    imshow("dest", dest);
+    Histo::showHisto(dest);
+    return 0;
+}