发明公开
EP1202558A2 Method for moiré-free color halftoning using non-orthogonal cluster screens
有权
Verfahren zurmoiréfreienFarbhalbtonerzeugung mittels nicht-orthogonaler Gruppenraster
- 专利标题： Method for moiré-free color halftoning using non-orthogonal cluster screens
- 专利标题（中）： Verfahren zurmoiréfreienFarbhalbtonerzeugung mittels nicht-orthogonaler Gruppenraster
-
申请号： EP01125062.8申请日： 2001-10-22
-
公开(公告)号： EP1202558A2公开(公告)日： 2002-05-02
- 发明人: Wang, Shen-ge , Fan, Zhigang , Wen, Zehnhuan
- 申请人： Xerox Corporation
- 申请人地址： Xerox Square - 20A, 100 Clinton Avenue South Rochester, New York 14644 US
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： Xerox Square - 20A, 100 Clinton Avenue South Rochester, New York 14644 US
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： US698104 20001030
- 主分类号： H04N1/52
- IPC分类号： H04N1/52
摘要：
The invention provides methods for using single-cell non-orthogonal cluster screens to satisfy the moiré-free conditions for color halftoning. The invention also provides methods that combine single-cell non-orthogonal cluster screens and line screens for moiré-free color halftoning. Particularly, the selection of these single-cell halftone screens is determined by satisfying moiré-free conditions provided in the respective spatial or frequency equations.
公开/授权文献
信息查询
