Patent ID: 6270186
Filing Date: 2001-08-07
Classification: B41J,G06K,H04N

Abstract:
A method of processing color image data for printing on an inkjet printer to reduce intercolor bleeding in an image recorded on a receiving medium, comprising:receiving color image data comprising multiple color planes that combine to form an array of composite pixels, the multiple color planes including at least one black plane and at least one non-black plane, wherein each color plane comprises an array of separation pixels, each separation pixel having at least three states, a first state corresponding to depositing no ink drops, a second state corresponding to depositing one ink drop, and a third state corresponding to depositing more than one ink drop;identifying an interface between a black area and a color area;modifying the color image data corresponding to an M-pixel wide color border in the color area to reduce in a non-black plane the number of separation pixels having a third state; andmodifying the color image data corresponding to an N-pixel wide black border in the black area to reduce in a black plane the number of separation pixels having a third state.