using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Emgu.CV.Structure;
using Emgu.Util;
using Emgu.CV;
using Emgu.CV.Util;


namespace Lab9
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Capture cp;


        private void button1_Click(object sender, EventArgs e)
        {
            cp = new Capture(@"D:\filmik.avi");


            cp.ImageGrabbed += Pobierz;
            cp.Start();
        }
        public void Pobierz (object o,EventArgs e)
        {
            Mat obraz = new Mat();
            Mat obraz1 = new Mat();
            Mat obraz2 = new Mat();
            cp.Retrieve(obraz);
            System.Threading.Thread.Sleep(40);
            Image<Bgr, double> jakis_obraz = obraz.ToImage<Bgr, double>();
            double[, ,] dane = jakis_obraz.Data;
            for (int y = 0; y < jakis_obraz.Height; y++)
                for (int x = 0; x < jakis_obraz.Width; x++)
                {
                    double G = dane[y, x, 1];
                    dane[y, x, 0] = dane[y, x, 1] = dane[y, x, 2] = G;
                }



            Mat jakis_obraz1 = new Mat();
            Mat obraz10 = CvInvoke.CvArrToMat(jakis_obraz);
            Mat obraz4 = new Mat();
            obraz10.ConvertTo(obraz4, Emgu.CV.CvEnum.DepthType.Cv8U);
            CvInvoke.Canny(obraz4, jakis_obraz1, 400, 50, 3, false);
            VectorOfVectorOfPoint kontury = new VectorOfVectorOfPoint();
            Mat hierarchia = new Mat();
            CvInvoke.FindContours(jakis_obraz1,kontury,hierarchia,Emgu.CV.CvEnum.RetrType.List,
                Emgu.CV.CvEnum.ChainApproxMethod.ChainApproxSimple);
            double A=0;
            double b;
            for (int i = 0; i < kontury.Size; i++)
            {
                if (CvInvoke.ContourArea(kontury[i]) > A) A = CvInvoke.ContourArea(kontury[i]);
                if (CvInvoke.ContourArea(kontury[i]) == A)
                    imageBox2.Image = jakis_obraz1;
            }
            imageBox1.Image = obraz;
        }
    }
}