60D Deblink

deblink.cs

    internal class Program {
        private static void Main(string[] args) {
            int consecutive = 0;
            List<int> runs = new List<int>();
            for (int n = 0; n < 53391; ++n) {
                if (LedOn(String.Format(@"C:\Users\angelsl\Downloads\deblink\{0:D3}.gif", n + 1))) ++consecutive;
                else {
                    if(consecutive > 0) runs.Add(consecutive);
                    consecutive = 0;
                }
            }
            File.WriteAllText(@"C:\Users\angelsl\deblinkbits.txt", String.Join("", runs.Select(run => run > 4 ? "1" : "0")));
            bool[] bits = runs.Select(run => run > 4).ToArray();
            int bytes = bits.Length/8;
            byte[] result = new byte[bytes];
            Console.WriteLine("Read {0} bits. Discarding {1} bits.", bits.Length, bits.Length-bytes*8);
            for (int n = 0, i = 0; n < bytes; ++n, i += 8) {
                result[n] = (byte)(
                    (bits[i  ] ? 1 : 0) +
                    (bits[i+1] ? 1 << 1 : 0) +
                    (bits[i+2] ? 1 << 2 : 0) +
                    (bits[i+3] ? 1 << 3 : 0) +
                    (bits[i+4] ? 1 << 4 : 0) +
                    (bits[i+5] ? 1 << 5 : 0) +
                    (bits[i+6] ? 1 << 6 : 0) +
                    (bits[i+7] ? 1 << 7 : 0));
            }
            File.WriteAllBytes(@"C:\Users\angelsl\deblink.txt", result);
        }

        private static unsafe bool LedOn(string img) {
            using (Bitmap bmp = new Bitmap(img)) {
                int w = bmp.Width, h = bmp.Height, r = w*h;
                BitmapData bd = bmp.LockBits(new Rectangle(0, 0, w, h), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
                Pixel* pix = (Pixel*) bd.Scan0;
                long sum = 0;
                for (int i = 0; i < r; ++i, ++pix) {
                    sum += (pix->R + pix->R + pix->R + pix->B + pix->G + pix->G + pix->G + pix->G) >> 3;
                }
                sum /= r;
                bmp.UnlockBits(bd);
                return sum > 50;
            }
        }

        private struct Pixel {
            public byte R;
            public byte G;
            public byte B;
        }
    }

deblinkbits.txt

10100101101001011010010110100101101001010000010000000100000001000000010000000100000001001001011001110110100101100010111001011100011001100110011000001100111011001000110001100110011001101100011001011100000011000000110001011100000011001000110001011100000001001101101000001010101100101011101000000100001000101001011011001110100001100100011000110110101001100000101011110110111011101010011001001110110010101000011001101110101001100000010000010100110000101111011010101110011101100010111010100110010011100000010010111100000001001000110010010100010100000000010000000100000001000000010000000100000001001001011001110110100101100010111001011100011001100110011000001100100011000100110001001100101001100010110001011100000111000100011001011100100011000110110001011100000001000101000011010010010011000001110011101100000001001001001011000010101010100000010001100010100101100100111010110110111011101000011001001110101001100000010001101010101001100100111011001110100101101111011001110110000001001000110001110100100011000111010010001100000001000001010000000100110011000111010011001100011101001110110000000100100101000101000000000100000001000000010000000100000001000000010010010110011101101001011000101110010111000110011001100110000011001000110001001100010011000110011000011100010111000001110001000110010111000000110010101100010111000000010001010000100100101100001010101010000001000100101010100110001101101010011010000110110011101010011000000100001000101000011000101110101001100010101010010110101101101010011000000100010011000000110010001100010011000111010000001100101011000111010010001100001011000000010010001100110011000101110100011000001110001011100010011001010110001010000000001000000010000000100000001000000010000000100100101100111011010010110001011100101110001100110011001100000110001001100010001101110110000101100001011000101110000001100000011000101110000001100110011000101110000000100110110101100101010100010100010101011101000000100110000100100111010100110100001100010111010100110110010101010011010001110101011101010011001110110110001101010011001001110000001000001010011001010001011101000011001001110001011101010111000001110001101000000010001110010101011101011011000000100101111000000010001101100100101000101000000000100000001000000010000000100000001000000010010010110011101101001011000101110010111000110011001100110000011000100110001000110100111001001110000101100010111000000110000001100010111000000110001001100010111000000010011011010110010101010001010001010101110100000010001110010111101100010111010010110011001101001111011000010111101101011011000001110001101101010011000101110101001100000010000010100110010100010111010000110010011100010111010101110000011100011010000000100011000100011011010000110111001100000010010111100000001000000110000011110100011000000110000001100000011000000110010010100010100000000010000000100000001000000010000000100000001001001011001110110100101100010111001011100011001100110011000001100010011000100011010011100011001100001110001011100000011000000110001011100000011001100110001011100000001001101101011001010101000101000101010111010000001000111001011110110001011101001011001100110100111101100001011110110101101100000111000110110101001100010111010100110000001000001010011000010101011100100111000000100101111000000010000001100001101000000010000001100000111101000110000001100000011000000110000001100001101000000010001100010001101101000011011100110000001001011110000000100000011000001111010001100000011000000110000001100000011001001010001010000000001000000010000000100110010100010111010000110010011100010111010101110000011100101110001100110011001100000110001001100010001100110110001101100001011000101110000001100000011000101110000001100101011000101110000000100110110101100101010100010100010101011101000000100110011101010011010001110101000100110111010100110011101100010111000100010100101101100111000001110100001100010111011000110000101100000010000010100110010100010111010000110010011100010111010101110000011100011010000000100000011001001010001010000000001000000010000000100110010100010111010000110010011100010111010101110000011100101110001100110011001100000110010001100010011000110110001001100001011000101110000011100010001100101110000001100101011000101110000000100110011100010111010000110010011100010111010101110000011101010001001110110001011100100111010011110010100000000010000000100000001001100101000101110100001100100111000101110101011100000111001011100011001100110011010001100010001101001110011001100001011000000110001011100000111001000110001011100000011001100110001011100000001001001001001110110100101100010111010010110100001100011011010010110010111101010011000000100100000100010011001010110101001101100011000101110100101100110111010100110000001000110010000000100110010101001011000101110101011101000011000101110100101101111011001110110010100000000010000000100000001001100101000101110100001100100111000101110101011100000111001011100011001100110011000001100100011000100110010101100101001100010110001011100000111000100011001011100000011001010110001011100000001001100111000101110100001100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deblinkbits_corrected.txt

00000100000001000000010000000100000001000000010010010110011101101001011000101110010111000110011001100110000011001110110010001100011001100110011011000110010111000000110000001100010111000000110010001100010111000000010011011010000010101011001010111010000001000010001010010110110011101000011001000110001101101010011000001010111101101110111010100110010011101100101010000110011011101010011000000100000101001100001011110110101011100111011000101110101001100100111000000100101111000000010010001100100101000101000000000100000001000000010000000100000001000000010010010110011101101001011000101110010111000110011001100110000011001000110001001100010011001010011000101100010111000001110001000110010111001000110001101100010111000000010001010000110100100100110000011100111011000000010010010010110000101010101000000100011000101001011001001110101101101110111010000110010011101010011000000100011010101010011001001110110011101001011011110110011101100000010010001100011101001000110001110100100011000000010000010100000001001100110001110100110011000111010011101100000001001001010001010000000001000000010000000100000001000000010000000100100101100111011010010110001011100101110001100110011001100000110010001100010011000100110001100110000111000101110000011100010001100101110000001100101011000101110000000100010100001001001011000010101010100000010001001010101001100011011010100110100001101100111010100110000001000010001010000110001011101010011000101010100101101011011010100110000001000100110000001100100011000100110001110100000011001010110001110100100011000010110000000100100011001100110001011100100011000001110001011100010011001010110001010000000001000000010000000100000001000000010000000100100101100111011010010110001011100101110001100110011001100000110001001100010001101110110000101100001011000101110000001100000011000101110000001100110011000101110000000100110110101100101010100010100010101011101000000100110000100100111010100110100001100010111010100110110010101010011010001110101011101010011001110110110001101010011001001110000001000001010011001010001011101000011001001110001011101010111000001110001101000000010001110010101011101011011000000100101111000000010001101100100101000101000000000100000001000000010000000100000001000000010010010110011101101001011000101110010111000110011001100110000011000100110001000110100111001001110000101100010111000000110000001100010111000000110001001100010111000000010011011010110010101010001010001010101110100000010001110010111101100010111010010110011001101001111011000010111101101011011000001110001101101010011000101110101001100000010000010100110010100010111010000110010011100010111010101110000011100011010000000100011000100011011010000110111001100000010010111100000001000000110000011110100011000000110000001100000011000000110010010100010100000000010000000100000001000000010000000100000001001001011001110110100101100010111001011100011001100110011000001100010011000100011010011100011001100001110001011100000011000000110001011100000011001100110001011100000001001101101011001010101000101000101010111010000001000111001011110110001011101001011001100110100111101100001011110110101101100000111000110110101001100010111010100110000001000001010011000010101011100100111000000100101111000000010000001100001101000000010000001100000111101000110000001100000011000000110000001100001101000000010001100010001101101000011011100110000001001011110000000100000011000001111010001100000011000000110000001100000011001001010001010000000001000000010000000100110010100010111010000110010011100010111010101110000011100101110001100110011001100000110001001100010001100110110001101100001011000101110000001100000011000101110000001100101011000101110000000100110110101100101010100010100010101011101000000100110011101010011010001110101000100110111010100110011101100010111000100010100101101100111000001110100001100010111011000110000101100000010000010100110010100010111010000110010011100010111010101110000011100011010000000100000011001001010001010000000001000000010000000100110010100010111010000110010011100010111010101110000011100101110001100110011001100000110010001100010011000110110001001100001011000101110000011100010001100101110000001100101011000101110000000100110011100010111010000110010011100010111010101110000011101010001001110110001011100100111010011110010100000000010000000100000001001100101000101110100001100100111000101110101011100000111001011100011001100110011010001100010001101001110011001100001011000000110001011100000111001000110001011100000011001100110001011100000001001001001001110110100101100010111010010110100001100011011010010110010111101010011000000100100000100010011001010110101001101100011000101110100101100110111010100110000001000110010000000100110010101001011000101110101011101000011000101110100101101111011001110110010100000000010000000100000001001100101000101110100001100100111000101110101011100000111001011100011001100110011000001100100011000100110010101100101001100010110001011100000111000100011001011100000011001010110001011100000001001100111000101110100001100100111000101110101011100000111000001010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