pnmtofits - convert a portable anymap into FITS format
2. SYNOPSIS ▲
pnmtofits [ -max f ] [ -min f ] [ pnmfile ]
3. 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.
4. OPTIONS ▲
-max can be used to set DATAMAX, DATAMIN, BSCALE and BZERO in the FITS header, but do not cause the data to be rescaled.
5. BUGS ▲
FITS uses signed data, and this program outputs unsigned values. If you run into this problem, you might use "-min 32768".
6. SEE ALSO ▲
7. AUTHOR ▲
Copyright (C) 1989 by Wilson H. Bent ( ), with modifications by Alberto Accomazzi ( ).