pgmtost4
converts PGM images to SBIG ST-4 autoguider format used by astronomical
TLDR
Convert PGM to SBIG ST-4 format
$ pgmtost4 [input.pgm] > [output.st4]
SYNOPSIS
pgmtost4 [file]
DESCRIPTION
pgmtost4 converts PGM images to SBIG ST-4 autoguider format used by astronomical imaging equipment. Part of Netpbm toolkit.