This is the command addpix 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
addpix - AME
SYNOPSIS
addpix [-vn] file.fts x y value...
DESCRIPTION
Add to pixel of FITS or IRAF image file
-n: write new file, else overwrite
-v: verbose
Use addpix online using onworks.net services