International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 28 - Number 9 |
Year of Publication: 2011 |
Authors: Tripti Goel, Vijay Nehra, Virendra P.Vishwakarma |
10.5120/3419-4771 |
Tripti Goel, Vijay Nehra, Virendra P.Vishwakarma . Comparative Analysis of various Illumination Normalization Techniques for Face Recognition. International Journal of Computer Applications. 28, 9 ( August 2011), 1-7. DOI=10.5120/3419-4771
The change in facial appearance due to illumination variation degrades face recognition systems performance considerably. In this paper, various states of art illumination normalization techniques have been explained and compared. The classification of the image recognition has been done using artificial neural networks (ANN). We have compared four illumination normalization methods which are (1) discrete cosine transform (DCT) with rescaling of low frequency coefficients (2) discrete cosine transform (DCT) with discarding of low frequency coefficients (3) homomorphic filtering (HF) (4) gamma intensity correction (GIC). These methods are evaluated and compared on Yale and Yale B Faces databases.