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