A novel digital halftoning technique, by which the halftoning is achieved by a pixelwise comparison of the grayscale image to an array (halftone screen), the blue-noise mask, is presented. This mask is designed so that the halftone image has blue-noise (high-frequency) characteristics in the frequency domain. The algorithm for the construction of the blue-noise mask and an algorithm for the construction of binary patterns with the same first-order but different second-order statistics are presented. Two psychovisual tests in which human subjects rated halftone patterns and images according to various criteria are also described.
REF propose to construct a blue noise mask which can produce a blue noise pattern.
Digital halftoning technique using a blue-noise mask
Journal of The Optical Society of America A-optics Image Science and Vision
Physics