Gamma-norm Image Colocalization Analysis, source code and ready-to-use ImageJ / FIJI plugin.
Current JAR-file for the plugin: GICA_20150901.jar
Method and algorithm published here:
Humpert, F., Yahiatene, I., Lummer, M., Sauer, M., & Huser, T. (2015). "Quantifying molecular colocalization in live cell fluorescence microscopy." Journal of biophotonics 8.1-2 (2015): 124-132.
GICA algorithm by Fabian Humpert and Idir Yahiatene, Java implementation by Marcel Mueller.