@Article{        Healey97,

author = {G. Healey and D. Slater},
title = {Computing Illumination-Invariant Descriptors of Spatially Filtered Color Image Region},
journal = {IEEE Transactions on Image Processing},
year = {1997},
volume = {6},
number = {7},
pages = {1002--1013},
month = jul,
theme = {filtrage,scene}
 }