Multithreding Edge detection

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using OpenCvSharp;
using OpenCvSharp.Extensions;
namespace Vaizdai2
{
    public partial class Form1 : Form
    {

        Mat image;
        Mat prcsImage;
        Thread camThread;

        public Form1()
        {
            camThread = new Thread(Run);
           // camThread.IsBackground = true;
            InitializeComponent();
        }

        private void Btn_LoadPicture_Clicked(object sender, MouseEventArgs e)
        {


            try
            {
                image = new Mat(txtBox_ImagePath.Text, ImreadModes.Color);
                pictureBox1.Image = image.ToBitmap();
                pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
                pictureBox1.Refresh();
            }
            catch (Exception)
            {
                MessageBox.Show("Invalid path name");
            }
        }

        private void Btn_Proccess_Clicked(object sender, MouseEventArgs e)
        {
            if (image != null)
            {
                prcsImage = FilteredImage(image);

                pictureBox2.Image = prcsImage.ToBitmap();
                pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;

                pictureBox2.Refresh();
            }
        }

        private Mat FilteredImage(Mat input)
        {
            //Sukuriame filtro laukeli
            Mat renata = Mat.Zeros(new OpenCvSharp.Size(3, 3), MatType.CV_32F);

            //pakeiciam nulius i 1/9. Blur filtras
            /*  for (int i = 0; i < 3; i++)
                  for (int j = 0; j < 3; j++)
                      renata.Set<Vec2f>(i, j, new Vec2f(0.1f, 0.1f));*/
            Random rnd = new Random();
            float a = rnd.Next(-10, 10);

            renata.Set<Vec2f>(0,0, new Vec2f(-1, -1));
            renata.Set<Vec2f>(0, 1, new Vec2f(-1, -1));
            renata.Set<Vec2f>(0, 2, new Vec2f(-1, -1));
            renata.Set<Vec2f>(1, 0, new Vec2f(-1, -1));
            renata.Set<Vec2f>(1, 1, new Vec2f(8,8));
            renata.Set<Vec2f>(1, 2, new Vec2f(-1, -1));
            renata.Set<Vec2f>(2, 0, new Vec2f(-1, -1));
            renata.Set<Vec2f>(2, 1, new Vec2f(-1, -1));
            renata.Set<Vec2f>(2, 2, new Vec2f(-1, -1));


            Mat img= input;
            //Src Output

            //Blur function. Naudojant nelyginius skaicius lengviau rast centrini pikseli
            //Cv2.Blur(img, img, new OpenCvSharp.Size(11, 11));
            // Cv2.MedianBlur(img, img, 7);
            Cv2.Filter2D(img, img, img.Depth(), renata);
            img.ConvertTo(img, MatType.CV_8UC3);

            return img;
        }


        private void Run()
        {
            Thread.CurrentThread.IsBackground = true;
            VideoCapture videoCapture = new VideoCapture(1);
            while (true)
            {

                image = new Mat();
                prcsImage = new Mat();

                GC.Collect();

                while (image.Width == 0)
                    videoCapture.Read(image);
                Cv2.Flip(image, image, FlipMode.Y);
                pictureBox1.Image = image.ToBitmap();
                pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
                // pictureBox1.Refresh();

                prcsImage = FilteredImage(image);

                pictureBox2.Image = prcsImage.ToBitmap();
                pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;

                // pictureBox2.Refresh();

               // videoCapture.Release();
            }
        }

        private void btn_StartStream_Clicked_Click(object sender, EventArgs e)
        {
            camThread.Start();
        }

        private void btn_StopStream_Clicked_Click(object sender, EventArgs e)
        {
            camThread.Abort();
        }
    }




}