Patent 8004718 was granted and assigned to Xerox on August, 2011 by the United States Patent and Trademark Office.
Image data representing an image is obtained, raster image processing is performed on the image data, and then trapping is performed on the image data after raster image processing. The trapping may be performed based on a tag plane generated during the raster image processing, or the determination of which pixels to trap may be performed after the raster image processing.