Illumination normalization preprocessing for face recognition
Muhammad Imran Sharif, Sajjad Mohsin, Muhammad Jawad Jamal, Mudassar Raza · 2010
This paper describes an illumination normalization technique which works at the pre-processing stage where the face image is first divided into equal sub-regions. Each sub-region is then processed separately for illumination normalization. Then the segments are joined back followed by further processing like noise removal and contrast enhancement. The proposed technique is tested on Yale dataset and compared with some previous illumination normalization techniques.