This is the command downsample-fits that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
downsample-fits - Scale down a FITS image
SYNOPSIS
downsample-fits [options] input-file output-file
DESCRIPTION
Scale down a FITS image. Use "-" to write to stdout.
OPTIONS
-s scale
Downsample scale (default: 2): integer
-e extension
Read extension (default: 0)
-v Verbose
Use downsample-fits online using onworks.net services