/// <summary>
/// Set the alpha channel of the current image from the given DDS file stream.
/// </summary>
/// <param name="image"><see cref="Stream"/> containing a DDS image.</param>
public void SetAlphaFromGreyscale(Stream image)
{
DdsFile greyscale = new DdsFile();
greyscale.Load(image, false);
ddsFile.SetAlphaFromGreyscale(greyscale);
ckb_CheckedChanged(null, null);
}