// Auto-generated C Code - S2i Mosaicode
/*
*	In order to compile this source code run, in a terminal window, the following command:
*	gcc sourceCodeName.c `pkg-config --libs --cflags opencv` -o outputProgramName
*
*	the `pkg-config ... opencv` parameter is a inline command that returns the path to both
*	the libraries and the headers necessary when using opencv. The command also returns other necessary compiler options.
*/

#ifdef _CH_
#pragma package <opencv>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <iostream>
#include "opencv2/core.hpp"
#include "opencv2/opencv.hpp"
#include "opencv2/imgproc.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui.hpp"
#include "opencv2/objdetect.hpp"
#include "opencv2/calib3d/calib3d.hpp"
#include "opencv2/features2d/features2d.hpp"

using namespace cv;
using namespace std;

#define FRAMERATE 1000.0 / 25.0


int main(int argc, char ** argv){
    char key = ' ';
            
    Mat image_file_14_output_image;
        
    Mat histogram_19_input_image;
    Mat histogram_19_output_image;
    int histogram_19[256];
    Mat histogramImage_19(400, 512, CV_8UC1, Scalar(255, 255, 255));
        
    Mat show_image_4_input_image;
    if(strcmp("WINDOW_NORMAL", "WINDOW_AUTOSIZE") == 0)
        namedWindow("My Image", WINDOW_NORMAL);
    else
        namedWindow("My Image", WINDOW_AUTOSIZE);

    while((key = (char)waitKey(FRAMERATE)) != 27){
        
    image_file_14_output_image = imread("/usr/share/mosaicode/extensions/examples/c/opencv/lenna.png", IMREAD_COLOR);
        
        if(!image_file_14_output_image.empty()) 
        	histogram_19_input_image = image_file_14_output_image.clone();
        
    if(!histogram_19_input_image.empty()){
        for(int i = 0; i < 255; i++){
            histogram_19[i] = 0;
        }
        for(int i = 0; i < histogram_19_input_image.rows; i++){
            for(int j = 0; j < histogram_19_input_image.cols; j++){
                histogram_19[(int)histogram_19_input_image.at<uchar>(i,j)]++;
            }
        }

        int max, bin_w = round((double) 512/256);
        for(int i = 0; i < 256; i++){
            if(max < histogram_19[i]){
                max = histogram_19[i];
            }
        }
        for(int i = 0; i < 255; i++){
            histogram_19[i] = ((double)histogram_19[i]/max)*histogramImage_19.rows;
        }
        for(int i = 0; i < 255; i++){
            line(histogramImage_19, Point(bin_w*(i), 400), Point(bin_w*(i), 400 - histogram_19[i]), Scalar(0,0,0), 1, 8, 0);
        }
        histogram_19_output_image = histogramImage_19.clone();
    }
        
        if(!histogram_19_output_image.empty()) 
        	show_image_4_input_image = histogram_19_output_image.clone();

    if(!show_image_4_input_image.empty()){
        imshow("My Image", show_image_4_input_image);
    }

                
    image_file_14_output_image.release();
        
    histogram_19_input_image.release();
    histogramImage_19.release();
        
    show_image_4_input_image.release();

    }

    destroyAllWindows();
    return 0;
}