The teachings provided herein disclose a method for the identification of
edge pixels within a digital image. The method operates by generating
edge-state codes for a plurality of pairs of neighboring vectors of
pixels within a given observation window, and generating an
edge-identification code from the plurality of edge-state codes using a
look-up table. The edge identification provides information that can be
used for subsequent treatments such as rendering anti-aliased pixels,
selecting preferred halftoning and tone reproduction for edge pixels,
corner sharpening, and object recognition and segmentation.