public void calculate_histogram(PictureBox statistikPictureBox)
        {
            statistic_pic = statistikPictureBox;

            if (pic.Image == null)
            {
                Bitmap b = new Bitmap(1, 1);
                pic.Image = b;
                model     = new StatistikModel(pic.Image);
            }
            else
            {
                model = new StatistikModel(pic.Image);
            }
            model.prepare_histogram_data();
            statistikForm.set_entropyLabel(model.get_entropy());
            statistikForm.set_varianceLabel(model.get_variance());
            statistikForm.set_averageLabel(model.get_average());
            statistikForm.set_minLabel(model.get_min_value());
            statistikForm.set_maxLabel(model.get_max_value());
            mainForm.Focus();
        }
 public void get_averageTest()
 {
     Bitmap bitmap = new Bitmap(3, 1);
     StatistikModel target = new StatistikModel(bitmap);
     int expected = 0; // TODO: Passenden Wert initialisieren
     int actual;
     actual = target.get_average();
     Assert.AreEqual(expected, actual);
 }