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  Astronomy  &
       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@nrao.edu) and Alberto
       Accomazzi (alberto@cfa.harvard.edu).

                                                 20 September 89                                    fitstopnm(1)