Text/Image Encoding

class Program {
    public const string IMG_PATH = @"c:\dev\hhgg.png";
    public const string TXT_PATH = @"c:\dev\hhgg.txt";

    static void Main(string[] args) {
        Encode();
        Decode();
    }

    private static void Decode() {
        var img = (Bitmap)Image.FromFile(IMG_PATH);
        using (var sw = new StreamWriter(TXT_PATH))
            for (var i = 0; i < img.Height; i++)
                for (var j = 0; j < img.Width; j++) {
                    var px = img.GetPixel(j, i);
                    sw.Write("{0}{1}{2}{3}", (char)px.A, (char)px.R, (char)px.G, (char)px.B);
                }
        Process.Start(TXT_PATH);
    }

    private static void Encode() {
        const int width = 267, height = 251;
        var txt = File.ReadAllText(TXT_PATH);
        var bytes = new Queue<byte>(Encoding.ASCII.GetBytes(txt));
        var colors = new Queue<Color>(Enumerable.Repeat(0, 67017)
            .Select(x => Color.FromArgb(bytes.Dequeue(), bytes.Dequeue(), bytes.Dequeue(), bytes.Dequeue())));
        var img = new Bitmap(width, height);
        for (var i = 0; i < img.Height; i++)
            for (var j = 0; j < img.Width; j++)
                img.SetPixel(j, i, colors.Dequeue());
        img.Save(IMG_PATH, ImageFormat.Png);
        Process.Start(IMG_PATH);
    }
}