Sometimes, when you're warping an image, you may decide that you don't like how it looks. You can easily clear the warp effect you've applied to the image with a general button control and some code.

<Button Content="Restart" Click="Restart" Grid.Column="2" Width="140" HorizontalAlignment="Left" />

The code attached to the button Click Event should look like the following:

private void Restart(object sender, RoutedEventArgs e)
        {
            bitmap.Copy(originalBitmap, false);
            screen.Copy(originalBitmap, false);
        }