Method and system for demosaicing artifact removal

摘要

Color image signals, as derived e.g. by interpolating the output from a color filter array (CFA) are arranged in pixels, each pixel having associated detected (10) color information for a first color as well as undetected filled-in (20) color information for at least a second and a third color. The images are thus exposed to false color and zipper effect artifacts, and are subject to processing preferably including the steps of:checking (30) the images for the presence of zipper effect artifacts, andi) if said checking (30) reveals the presence of zipper effect artifacts, applying a zipper effect removal process (50) to said image signals;ii) if said checking (30) fails to reveal the presence of zipper effect artifacts, applying a false color removal process (40) to said image signals.;False color and zipper effect artifacts are thus preferably both reduced by adaptively using the zipper effect removal process (50) and the false color removal process (40).