发明公开
- 专利标题: Method and apparatus for generating a screened reproduction of an image
- 专利标题(中): 用于生成图像的筛选再现方法和设备
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申请号: EP99300061.1申请日: 1999-01-06
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公开(公告)号: EP0929186A3公开(公告)日: 2001-07-11
- 发明人: Gershony, Moshe Abraham
- 申请人: CreoScitex Corporation Ltd.
- 申请人地址: 3 Hamada Street Herzlia 46103 IL
- 专利权人: CreoScitex Corporation Ltd.
- 当前专利权人: CreoScitex Corporation Ltd.
- 当前专利权人地址: 3 Hamada Street Herzlia 46103 IL
- 代理机构: Freed, Arthur Woolf
- 优先权: IL12290298 19980112
- 主分类号: H04N1/405
- IPC分类号: H04N1/405
摘要:
A method for generating a screened reproduction of an image includes the steps of providing a representation of an original, defining a desired screen dot arrangement for the image, and writing screen dots in a line by line fashion. The representation of an original has input density values representing the grey levels of various locations of the original for a given color separation. Each screen dot is made up of a plurality of line segments whose length and location determines the dot configuration and whose length and location is determined by employing the input density values of the original and the desired screen dot arrangement. The method is characterized in that at least some of the plurality of line segments are shifted from an otherwise generally straight line configuration so as to cause them to conform to a desired overall dot shape.
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