Invention Application
- Patent Title: Anisotropic stochastic screen
- Patent Title (中): 各向异性屏幕
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Application No.: US10285716Application Date: 2002-10-31
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Publication No.: US20040085588A1Publication Date: 2004-05-06
- Inventor: Robert P. Loce , Beilei Xu , Shen-Ge Wang
- Applicant: Xerox Corporation
- Applicant Address: null
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: null
- Main IPC: H04N001/405
- IPC: H04N001/405 ; H04N001/409

Abstract:
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.
Public/Granted literature
- US07139101B2 Anisotropic stochastic screen Public/Granted day:2006-11-21
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