ImageMagick.ChannelPerceptualHash.SetHash C# (CSharp) Метод

    private void SetHash()
    {
      _Hash = string.Empty;
      for (int i = 0; i < 14; i++)
      {
        double value;
        if (i < 7)
          value = _SrgbHuPhash[i];
        else
          value = _HclpHuPhash[i - 7];

        int hex = 0;
        while (hex < 7 && Math.Abs(value * 10) < 65536)
        {
          value = value * 10;
          hex++;
        }

        hex = hex << 1;
        if (value < 0.0)
          hex |= 1;
        hex = (hex << 16) + (int)(value < 0.0 ? -(value - 0.5) : value + 0.5);
        _Hash += hex.ToString("x", CultureInfo.InvariantCulture);
      }
    }