public void draw_histogram(System.Windows.Forms.PictureBox statistikPictureBox, Statistik form, Config.histogram_canal canal)
 {
     model.draw_histogram(statistikPictureBox, canal);
     mainForm.Focus();
 }
        public void draw_histogramTest()
        {
            Bitmap bitmap = new Bitmap(3, 1);
            StatistikModel acc = new StatistikModel(bitmap);

            System.Windows.Forms.PictureBox statistik_pic = new System.Windows.Forms.PictureBox();
            statistik_pic.Image = (Image)bitmap;
            acc.draw_histogram(statistik_pic, Config.histogram_canal.GREEN);
        }