Re: SETI public: software question

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From: David Ames (dave_at_groundcontrol.co.uk)
Date: Sun Jul 17 2005 - 15:26:38 UTC

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    Hi,

    I've added a CSV save option to the program, and put up the source code as well, see:

    http://www.groundcontrol.co.uk/seti/

    I'm not going to attempt decoding into grey scale or colour images as I don't think ET will be sending us holiday snaps just yet ;)

    Dave
      ----- Original Message -----
      From: Mike M.
      To: David Ames ; SETIpublic
      Sent: Thursday, July 14, 2005 10:29 AM
      Subject: Re: SETI public: software question

      Hey David,
            Thanks for putting together this program (so quickly!). Can you please share the source code, so that others can work on the debugging and feature-adding? Which programming language is it in?
          Needed features:
          Saving the reorganized data into a CSV file (ie. a text file in which each row is in a different line and each data cell in a row is separated from the next by a comma, the comma representing the beginning of a new column), which can then be displayed in a table in a word-processor or spreadsheet program (or re-opened into your program). See:
      http://en.wikipedia.org/wiki/Comma-separated_values

      Grouping the ones and zeros (bits) into bytes, to decode a possible grey-scale or color image. Our earth computers use 8-bit bytes. See:
      http://en.wikipedia.org/wiki/Byte

      Note that a binary number (ie. a byte) may be read in two opposite possible orders, from left to right or right to left, making it uncertain which of two possible values is the correct one. See:
      http://en.wikipedia.org/wiki/Endian

            Mike
        ----- Original Message -----
        From: David Ames
        To: Mike M. ; SETIpublic ; argus_at_setileague.org
        Sent: Wednesday, July 13, 2005 8:42 PM
        Subject: Re: SETI public: software question

        Hi Mike,

        This sounded like something that could be useful so I knocked up a quick program to convert a string of 0 and 1's to an image of specified rows/columns. It can be downloaded from http://www.groundcontrol.co.uk/seti/binimage.zip

        Its prob a bit buggy so let me know how you get on.

        Dave

          ----- Original Message -----
          From: Mike M.
          To: SETIpublic
          Sent: Wednesday, July 13, 2005 4:32 AM
          Subject: SETI public: software question

              Can anyone please tell me where to download a freeware program which can convert a list of data (numbers) into a table of whatever dimensions one chooses? Relative to SETI, it could be used, for example, to try to find a picture embedded in a radio transmission, by arranging ones and zeros into 2-dimensional grids of different possible pixel heights and pixel widths of an image. I've already wasted too much time looking for this, so if anyone can help, that would be great.
                 Thanks, Mike

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