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This paper presents a method of DCT-based illuminant compensation to enhance the accuracy of face recognition under an illuminant change. The basis of the proposed method is that the illuminant is generally located in low-frequency components in the DCT domain. Therefore, the effect of the illuminant can be compensated by controlling the low-frequency components. Moreover, a directional high-order local pattern descriptor is used to detect robust features in the case of face motion. Experiments confirm the performance of the proposed algorithm got up to 95% when tested using a real database. Keyword : Face recognition, Discrete Cosine Transform(DCT), Local Pattern Descriptor(LPD)

Face Recognition using High-order Local Pattern Descriptor and DCT-based Illuminant Compensation