/// <summary>
/// Converts the current composite image to grayscale.
/// </summary>
private void mnuGrayscale_Click(object sender, EventArgs e)
{
addBackgroundOperation(
GraphicOperations.ApplyGrayscaleFilter((Bitmap)pbxDisplay.Image),
"Applying grayscale filter",
(ps, pe) => { pbxDisplay.Image = (Bitmap)pe.Result; }
);
}
