Anisotropic stochastic screen

Details Anisotropic stochastic screen Anisotropic stochastic screen

H - Electricity

04

N

H04N 1/405 (2006.01) G06T 1/20 (2006.01) H04N 1/52 (2006.01)

Patent

CA 2446631

A system and method for the halftoning of gray scale images by utilizing a pixel-by-pixel comparison of the image against an anisotropic stochastic screen is disclosed. The anisotropic stochastic screen comprises a non-deterministic, non-white noise function which, when thresholded, is designed to produce anisotropic dot patterns having a power spectrum characterized as having negligible low frequency components and a high-frequency region which has an absence of stronger dominant spikes.

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