Patent ID: 7359530

Claim:
A method for preparing raster trapping for a page having a plurality of objects, comprising the steps of: (a) identifying a bounding box for each of said plurality of objects; (b) determining the presence of an intersection between one bounding box encompassing a subject object and another bounding box encompassing a background object that precedes the subject object in a temporal order of the plurality of objects; (c) determining the presence of the intersection between the subject object and the background object, in the presence of the intersection between the bounding boxes; (d) forming a trap based on a rendition of pixels for each of the subject object and the background object, in the presence of the intersection between the objects; (e) determining whether there is a complete trap for the subject object; (f) repeating steps (b) through (e) as applied to a next object that precedes the background object in the temporal order, treating the next object as the background object, in the absence of the complete trap; and (g) repeating steps (b) through (f) as applied to the next object that succeeds the subject object in the temporal order, treating the next object as the subject object, in the presence of the complete trap.