Patent ID: 8861035

Claim:
A printing device comprising a print controller configured to: determine an intensity threshold value for at least one color plane of multiple color planes of a contone image, wherein the intensity threshold value for the at least one color plane is based, at least in part, on address threshold logic of a pixel having (i) an X coordinate and (ii) a Y coordinate in an X-Y coordinate system within the at least one color plane, the pixel has an intensity in the at least one color plane, the threshold logic comprises a threshold matrix addressable by the X-Y coordinate system, and traversing across the threshold matrix in a sequence of X coordinates and/or Y coordinates that form a line or curve in the X-Y coordinate system produces an irregular or cyclic sequence of intensity threshold values; accumulate error in previously produced halftone outputs for the at least one color plane; for the at least one color plane, compare (i) the intensity and (ii) the accumulated error to the determined intensity threshold value to determine a halftone output corresponding to the pixel for the at least one color plane, wherein the halftone output corresponding to the pixel for the at least one color plane is based on the comparing; and produce the halftone output corresponding to the pixel determined for the at least one color plane.