// http://npg.si.edu/sites/default/files/blog_obama_martin_schoeller.jpg

​

using System;

using System.Net;

using System.IO;

using System.Drawing;

​

public class Program

{

    private static string letter { get; set; }

    private static int LineWidth { get; set; }

    public static void Main()

    {

        GetUserInput();

        //var image = GetImage(URL);

        var image = GetLetterImage(letter);

        Bitmap bitmap = ResizImage(image, LineWidth);

        ConvertToAscii(bitmap);

    }

    private static void GetUserInput()

    {

        Console.Write("Enter the letter?");

        letter = Console.ReadLine();

        Console.Write("Enter Line Character Amount");

        LineWidth = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine();

    }

​

    private static Image GetImage(string url)

    {

        using (var client = new WebClient())

        {

            byte[] data = client.DownloadData(url);

            using (var ms = new MemoryStream(data))

            {

                return Image.FromStream(ms);

            }

        }

    }

    private static Image GetLetterImage(string letter)

    {

        Stream imageStream = new MemoryStream();

         using (Bitmap board = new Bitmap(250,300))

              using (var g=Graphics.FromImage(board))

                using(Font drawFont = new Font("Arial", 36))

                 {

                    //g.Clear(Color.White);

                    g.DrawString(letter,drawFont,System.Drawing.Brushes.White,0,0);

​

                    board.Save(imageStream,System.Drawing.Imaging.ImageFormat.Jpeg);

                 }

        return Image.FromStream(imageStream);;

    }

​

    private static void ConvertToAscii(Bitmap bitmap)

    {

        char[] ascii = { '#', '@', '%', 'W', 'w', '=', '+', '*', ':', '-', ',', '.', ' ' };

        for (var h = 0; h < bitmap.Height; h++)

        {

            for (var w = 0; w < bitmap.Width; w++)

            {

                var pixel = bitmap.GetPixel(w, h);

                int gray = (pixel.R + pixel.G + pixel.B) / 3;

                int alpha = pixel.A == 255 ? 1 : 0;

                int index = (int)(gray * ascii.Length / 255);

                Console.Write(ascii[(alpha == 0 ? ascii.Length - 1 : index)]);

            }

​

            Console.WriteLine();

        }

    }

​

    private static Bitmap ResizImage(Image image, int width)

    {

        Bitmap bitmap = new Bitmap(image);

        int height = (int)Math.Ceiling((double)(bitmap.Height * width) / bitmap.Width);

        return new Bitmap(bitmap, width, (height / 2) + (width / 4));

    }

}