Image To ASCII library for .NET framework
ITAImage image = new ITAImage(PATH);
image.ResizeImage(1000, 250);
image.colorCharacters.WhiteColorCharacter = '▒';
image.colorCharacters.BlackColorCharacter = '█';
image.colorCharacters.RGBBelowHundredAndFifty = '▓';
image.colorCharacters.OtherColorsCharacter = '▒';
string imageASCII = image.ToString();
Console.WriteLine(imageASCII);