1. A method for improving classification accuracy of a face recognition system, said method comprising identifying a plurality of edges of an image, identifying a plurality of discontinuities in one or more edges of said identified plurality of edges of said image, wherein said discontinuities in said one or more edges correspond to missing edge pixels, computing said missing edge pixels, and generating a contiguous outline for said image using said computed pixels and said identified plurality of edges, from said contiguous outline, computing a set of pixels that complements said image, and filling said computed set of pixels with gray to maximize classification accuracy of said face recognition system.