图片变灰

原先：处理后：  

代码：

            BitmapImage bitmapImage = new BitmapImage(new Uri(Directory.GetCurrentDirectory() + @"\奥克拉荷马生物医药园.png"));             newFormatedBitmapSource = new FormatConvertedBitmap();            newFormatedBitmapSource.BeginInit();            newFormatedBitmapSource.Source = bitmapImage;            newFormatedBitmapSource.DestinationFormat = PixelFormats.Gray8;            newFormatedBitmapSource.EndInit();            image.Source = newFormatedBitmapSource;