Packaged plugins can be written in Java, Scala, or other JVM languages.ĭeveloping ImageJ plugins is quite simple. They can depend on external libraries or other plugins. Complex ones built from thousands lines of code a packaged in a Java jar with a special manifest.

Simple plugins are just a couple lines of macro code in a text file. One of its killer features is the ability to be extended by adding plugins.

ImageJ is open source image processing and analysis software.