Updating the installation
As you can see on the ImageJ News webpage, new versions appear quite regularly. For this book, we installed version 1.46r, but we wanted to catch up with version 1.47q. This latest ImageJ version has new functionalities and bug fixes that may be interesting for the user. Fortunately, ImageJ has an internal update command that will allow you to perform the update process easily, and without any user intervention. Simply run the Help | Update ImageJ... command and you will get the following dialog:
As you can see, it allows us to upgrade to the latest release and to other older versions, and bleeding-edge daily builds that are of no interest here. If you click on OK, your ImageJ installation will be upgraded and then automatically closed. The new version will be used the next time you run it.
Note
When you do it at home, the version number will surely be different. Do not worry! If there is a more recent version, just update to it. It may happen that you already have the most up-to-date version. In that case, you do not need to do anything.