发明名称 |
Method for four-color zero-moire halftoning using non-orthogonal halftone cells |
摘要 |
The invention provides methods for using single-cell non-orthogonal cluster screens to satisfy the moiré-free conditions for four-color halftoning. The selection of these single-cell halftone screens is determined by identifying combinations of four of the halftone cells which satisfy moiré-free conditions provided in the respective frequency equations. Constraints may be applied and the combinations not meeting such constraints can be removed.
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申请公布号 |
US6985262(B2) |
申请公布日期 |
2006.01.10 |
申请号 |
US20010905556 |
申请日期 |
2001.07.13 |
申请人 |
XEROX CORPORATION |
发明人 |
WANG SHEN-GE |
分类号 |
B41J2/525;G06K15/00;B41J2/52;G06F3/12;G06T1/00;G06T5/00;H04N1/405;H04N1/407;H04N1/409;H04N1/52;H04N1/60 |
主分类号 |
B41J2/525 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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