An Image Preprocessing Algorithm for Illumination Invariant Face Recognition.

Ralph Gross Vladimir Brajovic An Image Preprocessing Algorithm for Illumination Invariant Face Recognition. 10-18 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2688&spage=10 2003 conf/avbpa/2003 AVBPA db/conf/avbpa/avbpa2003.html#GrossB03