pnmtofits(1) [minix man page]

pnmtofits(1)                                                  General Commands Manual                                                 pnmtofits(1)

NAME

       pnmtofits - convert a portable anymap into FITS format

SYNOPSIS

       pnmtofits [-max f] [-min f] [pnmfile]

DESCRIPTION

       Reads  a portable anymap as input.  Produces a FITS (Flexible Image Transport System) file as output.  The resolution of the output file is
       either 8 bits/pixel, or 16 bits/pixel, depending on the value of maxval in the input file.  If the input file is a  portable  bitmap  or  a
       portable  graymap, the output file consists of a single plane image (NAXIS = 2). If instead the input file is a portable pixmap, the output
       file will consist of a three-plane image (NAXIS = 3, NAXIS3 = 3).  A full description of the FITS format can be found in Astronomy & Astro-
       physics Supplement Series 44 (1981), page 363.

OPTIONS

       Flags -min and -max can be used to set DATAMAX, DATAMIN, BSCALE and BZERO in the FITS header, but do not cause the data to be rescaled.

BUGS

       FITS uses signed data, and this program outputs unsigned values. If you run into this problem, you might use "-min 32768".

SEE ALSO

       fitstopnm(1), pgm(5)

AUTHOR

       Copyright (C) 1989 by Wilson H. Bent (whb@hoh-2.att.com), with modifications by Alberto Accomazzi (alberto@cfa.harvard.edu).

                                                                    5 Dec 1992                                                        pnmtofits(1)

iofits(1)						      General Commands Manual							 iofits(1)

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 :

       o      8 bits per pixel, unsigned.

       o      16 bits per pixel, signed

       o      32 bits per pixel, signed

       o      -32 IEEE floating point

       o      -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 swap-
	      ping 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)