fitstopnm



Fitstopnm User Manual(0)                              Fitstopnm User Manual(0)




NAME

       fitstopnm - convert a FITS file into a PNM image



SYNOPSIS

       fitstopnm  [-image  N]  [-scanmax] [-printmax] [-min f] [-max f] [FITS-
       file]

       All options may be abbreviated to their shortest unique prefix.



DESCRIPTION

       This program is part of Netpbm(1).

       fitstopnm reads a FITS file as input and produces a PPM  image  if  the
       FITS  file  consists of 3 image planes (NAXIS = 3 and NAXIS3 = 3), or a
       PGM image if the FITS file consists of 2 image planes (NAXIS =  2),  or
       if  you  specify the -image option.  The results may need to be flipped
       top for bottom; if so, just pipe the output through pamflip -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.

       You can use options -min and -max 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.

       You can use the -scanmax option to force the program to scan  the  data
       even  when  DATAMIN and DATAMAX are found in the header. If you specify
       -printmax, the program will just print the min and max values and quit.

       The program tells you what kind of PNM image it is writing.




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), pamflip(1), pgm(1)



AUTHOR

       Copyright  (C)  1989  by  Jef  Poskanzer,  with modifications by Daniel
       Briggs  (dbriggs@nrao.edu)  and  Alberto  Accomazzi   (alberto@cfa.har-
       vard.edu).



netpbm documentation            20 September 89       Fitstopnm User Manual(0)

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