convert a FITS file into a portable anymap
see also :
pnmtofits - pnmflip
[-image N] [-noraw] [-scanmax]
[-printmax] [-min f] [-max
add an example, a script, a trick and tips
*.hips | *.hips.* )
*.fits | *.fits.* )
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
-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.
-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
will tell what kind of anymap is writing. All flags can be
abbreviated to their shortest unique prefix.
FITS stands for Flexible Image Transport System. A full
description can be found in Astronomy & Astrophysics
Supplement Series 44 (1981), page 363.
1989 by Jef Poskanzer, with modifications by Daniel Briggs
(dbriggs[:at:]nrao[:dot:]edu) and Alberto Accomazzi