Patent ID: 6686922
Filing Date: 2004-02-03
Classification: G06K,H04N

Abstract:
A method for rendering gray half-toned images from a received image, said received image being bitmap data including at least a plurality of gray-scale pixel tiles that define said image, said matching method comprising:receiving a gray half-toned image so as to extract pixel tile information of said received image wherein said received image comprises a rotated high addressable image which have been averaged to produce gray pixels; matching loosely said pixel tile information with at least one of a plurality of templates so as to generate pixel-wise looseness interval values there between; and outputting a portion of enhanced said pixel tile information formed by a matching of a template with pixel-wise looseness values wherein the output signals are such that the dots are compact and may be slightly eroded or dilated in size thereby producing a desired effect on a tone reproduction curve.