Annotating Images in Cellpose

Posted by Lea Kabjesz, on 5 June 2025

In this blog post, I’ll show you how to manually annotate cells in 2D and 3D images using the Cellpose Graphical User Interface (GUI). Manual annotation is a key step in many bioimage analysis workflows. It allows you to create labeled data that can serve as a reference for evaluating segmentation quality – or even