private void RotateButton_Click(object sender, RoutedEventArgs e)
        {
            bitmapModel.width  = bitmapModel.src.PixelWidth;
            bitmapModel.height = bitmapModel.src.PixelHeight;

            bitmapModel.BitmapImageToArray2D();

            for (int x = 0; x < bitmapModel.height; x++)
            {
                for (int y = 0; y < bitmapModel.width; y++)
                {
                    bitmapModel.array2D[x, y] = bitmapModel.array2D[x, y] & 0xFF0000;
                }
            }

            imgCanvas.Source = bitmapModel.Array2DToBitmapImage();
        }