سورس کد تبدیل عکس رنگی به سیاه سفید (سی شارپ)

کد:
/// <summary>

        /// Convert an Image to a Grayscale Image.

        /// </summary>

        /// <param name="Bitmap">The Bitmap to Convert to Grayscale.</param>

        /// <returns>A Grayscale Image.</returns>

        public static Bitmap Grayscale(Bitmap bitmap)

        {

            //Declare myBitmap as a new Bitmap with the same Width & Height

            Bitmap myBitmap = new Bitmap(bitmap.Width, bitmap.Height);



            for (int i = 0; i < bitmap.Width; i++)

            {

                for (int x = 0; x < bitmap.Height; x++)

                {

                    //Get the Pixel

                    Color BitmapColor = bitmap.GetPixel(i, x);



                    //Declare grayScale as the Grayscale Pixel

                    int grayScale = (int)((BitmapColor.R * 0.3) + (BitmapColor.G * 0.59) + (BitmapColor.B * 0.11));



                    //Declare myColor as a Grayscale Color

                    Color myColor = Color.FromArgb(grayScale, grayScale, grayScale);



                    //Set the Grayscale Pixel

                    myBitmap.SetPixel(i, x, myColor);

                }

            }

            return myBitmap;

        }