Generalized Polarization plugin for Fiji and ImageJ as described in .
To download the plugin click the following link: http://sara.molbiol.ox.ac.uk/dwaithe/download_page.html#GP
Copy the '.jar' file into your ImageJ/Fiji plugins folder. Restart ImageJ/Fiji. The GP plugin will appear in your Plugins menu as 'GP PlugIn'.
 Spectral Imaging to Measure Heterogeneity in Membrane Lipid Packing (2015) Erdinc Sezgin, Dominic Waithe, Jorge Bernardino de la Serna, Christian Eggeling. ChemPhysChem. DOI: 10.1002/cphc.201402794