Abstract: This paper presents detailed study of various color constancy techniques. Color constancy is the ability to approximation of the color of the light sources. Unusual illuminates may impact the appearance of an image as compared to the image taken under canonical light source. Face is one of the most popular biometric modalities. This paper represents in detail about the color constancy of 2D-3D face and objects using color consistency and the brightness of the images. These results suggest that color constancy has a positive impact on face recognition.

Keywords: Color Constancy, Illumination, Computer Vision, Face Recognition, 2D-3D image, face recognition, biometric modalities.