1. A method for blur estimation in eye images, said method comprising: locating a region of an image containing an eye and identifying a center of a pupil region in said image; re-sampling said image along lines of various orientations, wherein each line of orientation thereof passes through a center of said pupil region, in order to generate data indicative of said image; testing said image to determine if said pupil is circular; estimating a blur width and an edge orientation of said lines of orientation according to said re-sampling; and fitting said data to a two parameter model of amplitude and phase according to a determination of an amplitude and a phase of a cosine that most closely matches said data, wherein said amplitude corresponds to a blur extent and said phase corresponds to a blur direction, with respect to said image.