pnmtofits
Convert PNM images to FITS astronomy format
TLDR
Convert PNM to FITS format
$ pnmtofits [input.pnm] > [output.fits]
SYNOPSIS
pnmtofits [file]
DESCRIPTION
pnmtofits converts PNM images to FITS (Flexible Image Transport System) format used in astronomy. Part of Netpbm toolkit.
INSTALL
sudo apt install netpbm
sudo dnf install netpbm
sudo pacman -S netpbm
sudo apk add netpbm
sudo zypper install netpbm
brew install netpbm
nix profile install nixpkgs#netpbm