--- /dev/null
+/**
+ * @function EqualizeHist_Demo.cpp
+ * @brief Demo code for equalizeHist function
+ * @author OpenCV team
+ */
+
+#include "opencv2/highgui/highgui.hpp"
+#include "opencv2/imgproc/imgproc.hpp"
+#include <iostream>
+#include <stdio.h>
+
+using namespace cv;
+using namespace std;
+
+/**
+ * @function main
+ */
+int main( int argc, char** argv )
+{
+ Mat src, dst;
+
+ char* source_window = "Source image";
+ char* equalized_window = "Equalized Image";
+
+ /// Load image
+ src = imread( argv[1], 1 );
+
+ if( !src.data )
+ { cout<<"Usage: ./Histogram_Demo <path_to_image>"<<endl;
+ return -1;
+ }
+
+ /// Convert to grayscale
+ cvtColor( src, src, CV_BGR2GRAY );
+
+ /// Apply Histogram Equalization
+ equalizeHist( src, dst );
+
+ /// Display results
+ namedWindow( source_window, CV_WINDOW_AUTOSIZE );
+ namedWindow( equalized_window, CV_WINDOW_AUTOSIZE );
+
+ imshow( source_window, src );
+ imshow( equalized_window, dst );
+
+ /// Wait until user exits the program
+ waitKey(0);
+
+ return 0;
+
+}