Helmholtz Analysis

Helmholtz Analysis
Project Fiji
URL http://imagej.net/Helmholtz_Analysis
Source on GitHub
License GPLv3
Release 2.0.2
Date Sat Apr 29 22:46:11 CDT 2017
Development status Stable
Support status None
Founders Bob Dougherty, Johannes Schindelin
Leads -
Developers -
Debuggers -
Reviewers -
Support -
Maintainers Curtis Rueden
Contributors Bob Dougherty, Johannes Schindelin, Mark Hiner

This plugin allows to analyze local direction and frequency of sinusoidal waves. The output are optionally smoothed lambda (inversely proportional to the frequency) and phi (direction in degrees).

See also http://www.optinav.info/Helmholtz_Analysis.htm


With an artificial example input like this:

Helmholtz Input.png

and parameters like this:


the Helmholtz Analysis plugin produces the local estimates:


and the smoothed versions thereof: