Illumination invariants based on Markov random fields.

Pavel Vacha Michal Haindl Illumination invariants based on Markov random fields. 1-4 2008 ICPR http://dx.doi.org/10.1109/ICPR.2008.4761375 conf/icpr/2008 db/conf/icpr/icpr2008.html#VachaH08