This invention relates to a method and apparatus for processing images having
color combinations. Such combinations may be embodied in, for example, a black
object being printed within a color object or in a black object that includes drops
of process color within the object. In these circumstances, undesired image artifacts
and halos are eliminated in images that include black portions that are adjacent
color portions, and/or improved printed edges are created, by offsetting the corresponding
black pixels relative to the color pixels and etching preselected pixels from the
image before printing.