1. A method of performing a biometric measurement on an individual, the method comprising: disposing a containment film between a skin site of the individual and a platen; directing light through the containment film to the skin site to illuminate the skin site under a plurality of distinct optical conditions, wherein at least one of the distinct optical conditions includes illuminating the skin site at an angle less than a critical angle, wherein the critical angle is defined by the interface of the platen and the ambient environment and measured from the normal of the platen; receiving light scattered from the skin site for the plurality of optical conditions, wherein at least a portion of the light is received after being scattered from the skin site at an angle less than the critical angle; deriving a multispectral image of the skin site from the received light; and performing a biometric function with the derived multispectral image.