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fitstopnm(1)                           General Commands Manual                          fitstopnm(1)



NAME
       fitstopnm - convert a FITS file into a portable anymap

SYNOPSIS
       fitstopnm [-image N] [-noraw] [-scanmax] [-printmax] [-min f] [-max f] [FITSfile]

DESCRIPTION
       Reads  a FITS file as input.  Produces a portable pixmap if the FITS file consists of 3 image
       planes (NAXIS = 3 and NAXIS3 = 3), a portable graymap if the FITS file consists  of  2  image
       planes  (NAXIS  =  2),  or whenever the -image flag is specified.  The results may need to be
       flipped top for bottom; if so, just pipe the output through pnmflip -tb.

OPTIONS
       The -image option is for FITS files with three axes.  The assumption is that the  third  axis
       is for multiple images, and this option lets you select which one you want.

       Flags  -min  and  -max  can  be used to override the min and max values as read from the FITS
       header or the image data if no DATAMIN and DATAMAX keywords are found.  Flag -scanmax can  be
       used  to  force  the  program to scan the data even when DATAMIN and DATAMAX are found in the
       header. If -printmax is specified, the program will just print the min  and  max  values  and
       quit.  Flag -noraw can be used to force the program to produce an ASCII portable anymap.

       The  program will tell what kind of anymap is writing.  All flags can be abbreviated to their
       shortest unique prefix.

REFERENCES
       FITS stands for Flexible Image Transport System.  A full description can be found in  Astron‐
       omy & Astrophysics Supplement Series 44 (1981), page 363.

SEE ALSO
       pnmtofits(1), pgm(5), pnmflip(1)

AUTHOR
       Copyright  (C)  1989 by Jef Poskanzer, with modifications by Daniel Briggs (dbriggs AT nrao.edu)
       and Alberto Accomazzi (alberto AT cfa.edu).



                                           20 September 89                              fitstopnm(1)