Loops

Repeating tasks in a script is the most important part when programming. This process is done using a specific statement: the loop. In JavaScript, you can use while, for (..), for (.. in ..), for (.. of ..).

Conditionals

Using conditionals in a script is a way to execute different parts of a code depending of the result of a condition. What is a condition, the operators (comparison and logical)?

Read/Write Pixels in a RGB image

Thanks to the methods of the class ImageProcessor [see Post], it is possible to read and write pixels in an image.

Read and Write Pixels in Grayscale Images

Thanks to the methods of the class ImageProcessor [see Post], it is possible to read and write pixels in an image.

Template Strings in ES6

With the new version of JavaScript (ECMAScript 2015+), new String functionalities — very convenient for ImageJ scripts — are available. Take a tour about these new features.

Variables in ECMAScript

With the new version of JavaScript (ECMAScript 2015+), the variables are now defined by three distinct keywords: var, let, and const. Why? That's what we'll see in this post.

ImageJ and ECMAScript 6

With the last update of ImageJ 1.51r, it is possible to use Java 9 and its new JavaScript engine Nashorn with ECMAScript 6 functionalities.... and that's a great news!! See how to do that...

Analyze: Analyze Particles

In the menu Analyze, the Analyze Particles... is the headquarters of all the various measurements you can do. Here is a brief explanation of the main features of this dialog window.

Video: TOC

Section dedicated to Video - a stack of images in function of time - and some tricks and tips.

Vidéos: How to load large videos?

When working with videos, it is difficult to process large files because of the memory limits in ImageJ. Here are few tips to try to circumvent this limitation.
 

Import Image Series

After converting your video in a series of image with ffmpeg [Link], the second step is to import them in ImageJ thanks to the command File > Import > Image Sequence...