1. A method of capturing images of an iris and a scene using a single image sensor, comprising: capturing, by an image sensor, a view of a scene and a view of an iris in at least one image; applying a level of noise reduction to a first portion of the at least one image to produce an image of the scene; and applying a reduced level of noise reduction to a second portion of the at least one image to produce an image of the iris for use in biometric identification.