gemtopnm(1) General Commands Manual gemtopnm(1)NAME
gemtopnm - convert a GEM .img file into a portable anymap
SYNOPSIS
gemtopnm [-d] [gemfile]
DESCRIPTION
Reads a GEM .img file, either the one plane (black/white) or four plane (16 color) varieety, as input. Reads from stdin if input file is
omitted. Produces a PBM or PPM file as output, depending on whether the input is one or four plane.
OPTIONS -d Produce output describing the contents of the .img file.
SEE ALSO pbmtogem(1), pnm(5)AUTHOR
Copyright (C) 1988 Diomidis D. Spinellis (dds@cc.ic.ac.uk).
30 April 2000 gemtopnm(1)
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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)
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