If you have difficulties, please post on the Image.sc Forum.Īt any time, you can verify which Javas are installed on your system using this script. However, ImageJ should work OK with Java 8. It is unfortunately no longer feasible to install Apple Java 6 on current versions of macOS. See also the Frequently Asked Questions page. this JDK bug discussing the issue.Īs a workaround, you can check “Use JFileChooser to open/save” in the Edit › Options › Input/Output… dialog.
On macOS 10.11 “El Capitan” and later, the operating system no longer includes a title bar for file chooser dialogs. If you find a solution that works, allowing ImageJ to run fast in the background, please tell us on the forum!) No title bar in file chooser dialogs (There are also various ways to disable App Nap on your machine, but we have not had much success with them. Leave ImageJ in the foreground while it is processing to avoid this issue. With macOS version 10.9 “Mavericks” and later, there is an “App Nap” feature which dramatically slows down applications that are not in the foreground. Make sure you are using the latest version of Java 8, as well as the latest version of ImageJ. There is a bug in Java 8 on macOS which causes the application to drastically slow down as many windows are opened and closed over time. You should either upgrade to the latest version of Java 8, or revert to Java 6 (see “Frequently Asked Questions” below).
On macOS, older versions of Java 8 (prior to 1.8.0_45)-as well as all versions of Java 7 (including 1.7.0_80)-are extremely slow at displaying images. There are several reasons ImageJ can run slowly on macOS. ImageJ becomes very slow after running for a while See also the Java 8 page for OS-X-specific issues. This page details issues specific to using ImageJ and friends on macOS systems. It is the second most common desktop computing platform after Windows.
MacOS (formerly called Mac OS X, then OS X) is Apple’s desktop operating system.
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