1. A method of performing a biometric function, the method comprising: providing illumination light having a plurality of wavelengths; directing the illumination light to an illumination region of a biometric sensor to illuminate a skin site of an individual, wherein directing the illumination light is performed while the skin site and the illumination region are in relative motion to sequentially illuminate different portions of the skin site; receiving light scattered from the different portions of the skin site; forming an image of the skin site from the received light at the plurality of wavelengths; and comparing the image with images comprised by a database of images to perform the biometric function.