Patent ID: 8872841

Claim:
A method of producing a bit-map comprising: rendering by a processor a bit-map of a first image using a first stochastic half-tone screen set; rendering by the processor a bit-map of a second image using a second stochastic half-tone screen set, wherein the first half-tone screen set and the second half-tone screen set have respectively associated stochastic half-tone screens, and wherein each screen of the second half-tone screen set is less than 100 percent correlated with, and not an inverse of, the associated screen of the first half-tone screen set; and merging by the processor the bit-map of the first image with the bit-map of the second image, including: applying non-white pixels of a screen of the second half-tone screen set at only white pixel locations of a screen of the first half-tone screen set based on coverage levels of the half-tone screens, wherein a basis includes that the screen of the second half-tone screen set has a coverage level less than a first threshold value and a screen of the first half-tone screen set is at a second threshold, wherein the first threshold is less than the second threshold.