#include "opencv/cv.h"
#include "opencv/highgui.h"
#include <stdio.h>

using namespace std;
using namespace cv;

bool do_track = false;

int clicked_x = -1;
int clicked_y = -1;
void mousehandler( int event, int x, int y, int flags, void* param )
{
    clicked_x = -1;
    if( event == CV_EVENT_LBUTTONDOWN )
    {
        clicked_x = x;
        clicked_y = y;
        printf("clicked %d %d\n", x,y);
    }
}



 int main()
 {
    CvCapture* zaznam = cvCaptureFromCAM( CV_CAP_ANY); //zaznamenavanie z kamery
    if ( !zaznam )
    {
        fprintf( stderr, "Chyba! zaznam je bez hodnoty \n ");
        getchar();
        return -1;
    }


    cvNamedWindow("video",CV_WINDOW_AUTOSIZE);

    cvNamedWindow("hsv",CV_WINDOW_AUTOSIZE);
    cvSetMouseCallback("hsv", mousehandler );


    while (true)
    {
        IplImage *snimok = cvQueryFrame(zaznam);
        if (!snimok)
        {
            fprintf( stderr, "Chyba! snimok je bez hodnoty");
            getchar();
            break;
        }

        cvFlip(snimok,snimok,1);
        CvSize imgsize = cvGetSize(snimok);
		IplImage* recHSV = cvCreateImage(imgsize, 8, 3);
    	cvCvtColor(snimok, recHSV, CV_BGR2HSV);
        if ( clicked_x != -1 )
        {
            char * pixel = recHSV->imageData + (clicked_x +clicked_y * imgsize.width) * 3;
            int h = (uchar)pixel[0];
            int s = (uchar)pixel[1];
            int v = (uchar)pixel[2];
            printf("%d %d %d\n", h, s, v );
        }

        cvShowImage("hsv",recHSV);
        cvShowImage("video",snimok);
		if ( cvWaitKey(10) > 0 )
			break;
    }
    cvReleaseCapture( &zaznam );
    cvDestroyWindow ("Moje Okno");
    return 0;

 }