private void closingToolStripMenuItem_Click(object sender, EventArgs e)
{
bool[,] mask = new bool[3, 3];
mask[0, 0] = true;
mask[0, 1] = true;
mask[0, 2] = true;
mask[1, 0] = true;
mask[1, 1] = true;
mask[1, 2] = true;
mask[2, 0] = true;
mask[2, 1] = true;
mask[2, 2] = true;
MathMorf close = new Closing();
//backgroundWorker2.RunWorkerAsync(close);
Bitmap resultImage = close.procImg(image, mask, 3, 3 /*backgroundWorker2*/);
pictureBox1.Image = resultImage;
pictureBox1.Refresh();
}