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This page describes content relating to the ImageJ2 platform. Click the logo for details.

Update Sites

The content of this page has not been vetted since shifting away from MediaWiki. If you’d like to help, check out the how to help guide!

An update site is web space used by the Updater which enables users to share their macros, scripts and plugins with other researchers. With update sites, you do not need to manually download and install anything; ImageJ2 takes care of it for you.

Available update sites

You can browse the list of available update sites.

Following an update site

The Fiji distribution of ImageJ2 ships with both the /about and /fiji sites enabled. You can transform your ImageJ2 installation into a Fiji one simply by enabling the /fiji update site.

Out of the box, ImageJ2 has only the core ImageJ update site enabled. To enable additional features, choose HelpUpdate…, then click the “Manage update sites” button.

For further details, see Following an update site.

Check if an update site is activated

In Fiji, if you write macros and plugins that rely on some functionalities provided by a specific update site (dependencies), you can use the following command to check if the update site is activated, and print a message if not.
This uses the update site service.
Example in Jython.

#@ UpdateService updateService

if not updateService.getUpdateSite("Fiji-Legacy").isActive():
    print "Please activate the Fiji-legacy update site"

Creating your own update site

Anyone can share their extensions (plugins, scripts, etc.) by creating their own update site. You can use ImageJ2’s personal update site service (hosted on the ImageJ2 web server), or host it on your own server.

Frequently asked questions

See the Update site FAQ.