============== Initialization ============== This document assumes familiarity with napari_. Starting napari-imagej ---------------------- With napari running, napari-imagej can be found through ``Plugins->ImageJ2 (napari-imagej)``. If you don't see this menu option, return to the `installation guide <./Install.html>`_ and ensure you are launching napari from a python environment with the napari-imagej plugin installed. If you're still having trouble, please see the `troubleshooting section <./Troubleshooting.html#napari-imagej-does-not-appear-in-the-plugins-menu-of-napari>`__. Once triggered, napari-imagej will start up the JVM, and then the ImageJ2 gateway. This setup can take a few seconds, and is complete when the napari-imagej searchbar is cleared and enabled. **On the first initialization, napari-imagej must download an ImageJ2 distribution. This download can take minutes, depdending on the user's bandwidth.** .. figure:: https://media.imagej.net/napari-imagej/0.2.0/startup.gif Once napari-imagej is fully initilized, you can see the `Use Cases <./Use_Cases.html>`_ page for examples of available functionality. Alternatively, if you're new to ImageJ, you may want to start with a `high-level overview `_. **Note**: napari-imagej always downloads the latest version of ImageJ2_, along with classic ImageJ functionality. To launch a *different* ImageJ2 distribution, such as Fiji_, please see the `Configuration <./Configuration.html>`_ page Starting the ImageJ GUI ----------------------- While all ImageJ2 functionality should be accessible direclty through the napari-imagej widget, many original ImageJ functions require the ImageJ graphical user interface (GUI) to be visible. If you try to run one of these commands through the napari-imagej search bar you will receive a message indicating the GUI is required, with an option to show it. Alternatively, at any point you can launch the ImageJ GUI via the GUI button in the napari-imagej menu. .. figure:: https://media.imagej.net/napari-imagej/0.2.0/settings_gui_button.png The GUI is launched through the ImageJ button on the napari-imagej menu If your ImageJ GUI button is greyed out, see the `troubleshooting section <./Troubleshooting.html#the-imagej2-gui-button-is-greyed-out>`__. .. _Fiji: https://imagej.net/software/fiji/ .. _ImageJ2: https://imagej.net/software/imagej2/ .. _napari: https://napari.org