Invention Grant
- Patent Title: Rotated halftone screen geometry that avoids beat-based banding
- Patent Title (中): 旋转半色调屏幕几何,避免基于节拍的条带
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Application No.: US12612197Application Date: 2009-11-04
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Publication No.: US08416458B2Publication Date: 2013-04-09
- Inventor: Shen-ge Wang , Robert P. Loce
- Applicant: Shen-ge Wang , Robert P. Loce
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Fay Sharpe LLP
- Main IPC: H04N1/405
- IPC: H04N1/405

Abstract:
Disclosed are methods and apparatus for reproducing an image using one or more halftone screens for one or more respective colorants in the methods and apparatus reducing the beating of one or more excitation frequencies with one or more harmonic frequencies associated with the halftone screens. According to an exemplary method, one or more halftone screens are selected such that the fundamental frequency of an excitation frequency coincides with a harmonic frequency of a halftone screen.
Public/Granted literature
- US20110102847A1 ROTATED HALFTONE SCREEN GEOMETRY THAT AVOIDS BEAT-BASED BANDING Public/Granted day:2011-05-05
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