private bool CheckIfGrayScale(PixelFormat pixelFormat, BitmapPalette palette, DeepScanOptions DeepScan)
{
if (pixelFormat == PixelFormats.Gray32Float ||
pixelFormat == PixelFormats.Gray16 ||
pixelFormat == PixelFormats.Gray8 ||
pixelFormat == PixelFormats.Gray4 ||
pixelFormat == PixelFormats.Gray2)
{
if (DeepScan != DeepScanOptions.Force)
{
return(true);
}
else if (pixelFormat == PixelFormats.Indexed8 ||
pixelFormat == PixelFormats.Indexed4 ||
pixelFormat == PixelFormats.Indexed2)
{
DeepScan = (DeepScan != DeepScanOptions.Skip) ? DeepScanOptions.Force : DeepScan;
}
}
if ((DeepScan != DeepScanOptions.Skip) & palette != null)
{
List <Color> IndexedColors = palette.Colors.ToList();
return(IndexedColors.All(rgb => (rgb.R == rgb.G && rgb.G == rgb.B && rgb.B == rgb.R)));
}
return(false);
}
public bool IsGrayScale(DeepScanOptions DeepScan)
{
return(CheckIfGrayScale(this.PixelFormat, this.Palette, DeepScan));
}
