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 &
Astrophysics 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)