The ImageJ launcher is a native application for launching ImageJ.
It supports the following flavors of ImageJ:
The launcher provides a platform-specific entry point into the ImageJ Java application. Its most major function is to facilitate the ImageJ Updater feature by taking care of pending updates when ImageJ is first launched.
For an overview of supported options, run:
./ImageJ-xyz --help
where xyz is your platform.
Up-to-date versions can always be downloaded from the ImageJ Nexus: