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)