NAME

       iofits - FITS data format conversion (pixel depth)

SYNOPSIS

       iofits [options] <in_fits> <out_fits> <depth>

DESCRIPTION

       iofits  converts  FITS  files  of any pixel depth to another pixel depth (bits per pixel).
       Depth is given as in the FITS norm :

       •      8 bits per pixel, unsigned.

       •      16 bits per pixel, signed

       •      32 bits per pixel, signed

       •      -32 IEEE floating point

       •      -64 IEEE double precision floating point

OPTIONS

       -v     Verbose mode.

       -M megs
              Memory handling. To avoid saturate memory for huge cubes, this parameter  specifies
              the  maximum  amount  of memory to use before swapping data to disk.  The amount is
              given in Megabytes.  (1Meg = 1,048,576 Bytes) The process time is then considerably
              slowed down.  Default value is 50 megs.

FILES

       Input/output files shall all comply with FITS format.

       The  original  FITS  header   of  the  input  FITS file is conserved along, except for the
       following keywords: NAXIS, NAXISn, BITPIX, BSCALE, BZERO, which are related to  the  newly
       created file.

       HISTORY  keywords  are  appended  to  the  FITS  header  to  indicate  the eclipse process
       modifications, together with the command line which was used to generate the file.

SEE ALSO

       average, filt, deadpix

BUGS

       In general, decreasing the resolution in number of bits per pixel almost always means loss
       of precision. No rescaling is done on the data, use this command with care!

                                           25 Feb 1997                                  iofits(1)