public FreeImageAlgorithmsBitmap(int width, int height, int colorDepth)
{
FIBITMAP dib = FreeImage.Allocate(width, height, colorDepth,
FreeImage.FI_RGBA_RED_MASK,
FreeImage.FI_RGBA_GREEN_MASK,
FreeImage.FI_RGBA_BLUE_MASK);
if (dib.IsNull)
{
throw new Exception("Unable to create bitmap.");
}
this.ReplaceDib(dib);
this.SetGreyLevelPalette();
}