Computer Vision News - March 2021

14 Computer Vision Tool ImageJ This month we introduce an exciting and widely used tool called ImageJ. This is an open-source Java-based image processing program developed at the National Institutes of Health and the Laboratory for Optical and Computational Instrumentation , by Wayne Rasband . The first version of this tool was written in Pascal and could run using only 64KB of memory in minicomputers. Since then, ImageJ became more and more popular, and thanks to its nature of open-source tool, far more advanced. Many versions of ImageJ are by Marica Muffoletto now available including SciJava, ImgLib2, SCIFIO and Fiji, a distribution with a useful selection of pre-installed plugins. ImageJ is available for download on the website https://imagej.net/Downloads and its github page can be found here. ImageJ can be used as a standalone application using the first link which will download an executable application or can be employed as a library to run within an external Java software. In this second case, the github repository can be cloned straight into the chosen directory. Introduction to ImageJ Once the application is installed and opened, you should see a simple window comprising only of a toolbar. This should look very similar to the one below across all versions of ImageJ.