ASCII Imaging

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;

namespace Image2ASCII
{
    class Program
    {
        static Color[] ConsoleColors()
        {
            Color[] array = new Color[16];
            string[] names = Enum.GetNames(typeof(ConsoleColor));
            for (int i = 0; i < names.Length; i++)
                array[i] = Color.FromName(names[i]);
            return array;
        }
        static ConsoleColor Closest(Color _1)
        {
            if (_1.IsSystemColor)
                return (ConsoleColor)Enum.Parse(typeof(ConsoleColor), _1.Name);
            double dbl_input_red = Convert.ToDouble(_1.R);
            double dbl_input_green = Convert.ToDouble(_1.G);
            double dbl_input_blue = Convert.ToDouble(_1.B);
            double distance = 500.0;

            double dbl_test_red;
            double dbl_test_green;
            double dbl_test_blue;
            Color nearest_color = Color.Empty;
            foreach (object o in ConsoleColors())
            {
                dbl_test_red = Math.Pow(Convert.ToDouble(((Color)o).R) - dbl_input_red, 2.0);
                dbl_test_green = Math.Pow(Convert.ToDouble
                    (((Color)o).G) - dbl_input_green, 2.0);
                dbl_test_blue = Math.Pow(Convert.ToDouble
                    (((Color)o).B) - dbl_input_blue, 2.0);
                double temp = Math.Sqrt(dbl_test_blue + dbl_test_green + dbl_test_red);
                if (temp == 0.0)
                {
                    nearest_color = (Color)o;
                    break;
                }
                else if (temp < distance)
                {
                    distance = temp;
                    nearest_color = (Color)o;
                }
            }
            return (ConsoleColor)Enum.Parse(typeof(ConsoleColor), nearest_color.Name);

        }
        static string Brightness(Color _1)
        {
            int factor = _1.R + _1.G + _1.B;
            if (factor >= 602)
                return "M";
            if (factor >= 572)
                return "@";
            if (factor >= 532)
                return "#";
            if (factor >= 502)
                return "8";
            if (factor >= 472)
                return "0";
            if (factor >= 432)
                return "&";
            if (factor >= 402)
                return "%";
            if (factor >= 372)
                return "?";
            if (factor >= 332)
                return "<";
            if (factor >= 302)
                return "/";
            if (factor >= 252)
                return "*";
            if (factor >= 200)
                return ".";
            return " ";
        }
        static CString CSimiliarity(Color _1)
        {
            CString str = new CString();
            str.String = Brightness(_1);
            str.Color = Closest(_1);
            return str;
        }
        static CString[,] ImageToASCII(Bitmap b)
        {
            Image.GetThumbnailImageAbort myCallback = null;
            if (b.Width > 80)
                b = (Bitmap)b.GetThumbnailImage(80, 60, myCallback, IntPtr.Zero);
            CString[,] map = new CString[b.Width, b.Height];
            for (int y = 0; y < b.Height; y++)
            {
                for (int x = 0; x < b.Width; x++)
                {
                    map[x, y] = CSimiliarity(b.GetPixel(x, y));
                }
            }
            return map;
        }
        static void PrintCStringMult(CString[,] mult)
        {
            int width = mult.GetLength(0);
            int height = mult.GetLength(1);
            for (int y = 0; y < height; y++)
            {
                for (int x = 0; x < width; x++)
                {
                    CString m = mult[x, y];
                    Console.ForegroundColor = m.Color;
                    Console.Write(m.String);
                }
            }

        }

        static void Main(string[] args)
        {
            string path = @"C:\example.png";
            CString[,] img = ImageToASCII((Bitmap)Image.FromFile(path));
            PrintCStringMult(img);
            Console.ReadKey();
        }
    }
}