Text to Ascii

convert-text-to-ascii.cs

using System;
using System.Drawing;
using System.Text;

namespace AsciiPainter
{
	class Program
	{
		static void Main()
		{
			Console.WriteLine("Yazıyı giriniz:");

			var input = Console.ReadLine();

			var inputImage = DrawText(input, new Font(FontFamily.GenericMonospace, 12), Color.Black, Color.White);

			var outputText = GrayscaleImageToASCII(inputImage);

			Console.Clear();
			Console.Write(outputText);

			Console.WriteLine("Kapatmak için bir tuşa basınız.");
			Console.ReadKey();
		}

		private static Image DrawText(String text, Font font, Color textColor, Color backColor)
		{
			//first, create a dummy bitmap just to get a graphics object
			Image img = new Bitmap(1, 1);
			Graphics drawing = Graphics.FromImage(img);

			//measure the string to see how big the image needs to be
			SizeF textSize = drawing.MeasureString(text, font);

			//free up the dummy image and old graphics object
			img.Dispose();
			drawing.Dispose();

			//create a new image of the right size
			img = new Bitmap((int)textSize.Width, (int)textSize.Height);

			drawing = Graphics.FromImage(img);

			//paint the background
			drawing.Clear(backColor);

			//create a brush for the text
			Brush textBrush = new SolidBrush(textColor);

			drawing.DrawString(text, font, textBrush, 0, 0);

			drawing.Save();

			textBrush.Dispose();
			drawing.Dispose();

			return img;
		}

		public static string GrayscaleImageToASCII(Image img)
		{
			StringBuilder html = new StringBuilder();
			Bitmap bmp = null;

			try
			{
				bmp = new Bitmap(img);

				for (int y = 0; y < bmp.Height; y++)
				{
					for (int x = 0; x < bmp.Width; x++)
					{
						Color col = bmp.GetPixel(x, y);

						col = Color.FromArgb((col.R + col.G + col.B) / 3,
							(col.R + col.G + col.B) / 3,
							(col.R + col.G + col.B) / 3);

						int rValue = int.Parse(col.R.ToString());

						html.Append(getGrayShade(rValue));

						if (x == bmp.Width - 1)
							html.Append(Environment.NewLine);
					}
				}

				return html.ToString();
			}
			catch (Exception exc)
			{
				return exc.ToString();
			}
			finally
			{
				bmp.Dispose();
			}
		}

		private static string getGrayShade(int redValue)
		{
			if (redValue >= 230)
				return " ";
			else
				return "*";
		}
	}
}

Tek başına compile etmek için:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe /out:AsciiPainter.exe convert-text-to-ascii.cs

Kaynaklar:
http://stackoverflow.com/questions/2070365/how-to-generate-an-image-from-text-on-fly-at-runtime
http://www.codeproject.com/Articles/20435/Using-C-To-Generate-ASCII-Art-From-An-Image