Kappa is A Fiji plugin for Curvature Analysis.
It allows a user to measure curvature in images in a convenient way. You can trace an initial shape with a B-Spline curve in just a few clicks and then fit that curve to image data with a minimization algorithm. It’s fast and robust.
See also the ImageJ Wiki page.
Analysis done for the paper is available and can be reproduced from this older. See Analysis.
You can fire a remote Jupyter notebook server and reproduce the analysis using Binder: https://mybinder.org/v2/gh/fiji/Kappa/master?urlpath=lab/tree/Analysis/Notebooks.
Kappa is included with Fiji. Just open your image,
then start the plugin with Plugins ► Analyze ► Kappa - Curvature Analysis.
See documentation in the docs/ folder.
Kappa has been created originally by Kevan Lu and further developed by Hadrien Mary.
This work started in 2013 in the Gary Brouhard laboratory at the University of McGill.
MIT license. See LICENSE.txt