Bitmap newBitmap = new Bitmap(original.Width, original.Height);

            for (int i = 0; i < original.Width; i++)
            {
                for (int j = 0; j < original.Height; j++)
                {
                    Color originalColor = original.GetPixel(i, j);
                    int grayScale = (int)((originalColor.R * .3) + (originalColor.G *
                    .59) + (originalColor.B * .11));
                    Color newColor = Color.FromArgb(grayScale, grayScale, grayScale);
                    newBitmap.SetPixel(i, j, newColor);
                }
            }
            return newBitmap;