发明授权
- 专利标题: Enhancement of glossmark images at low and high densities
- 专利标题(中): 在低密度和高密度下增强光泽标记图像
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申请号: US10876001申请日: 2004-06-24
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公开(公告)号: US07352493B2公开(公告)日: 2008-04-01
- 发明人: Chu-Heng Liu , Shen-Ge Wang , Beilei Xu
- 申请人: Chu-Heng Liu , Shen-Ge Wang , Beilei Xu
- 申请人地址: US CT Norwalk
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: US CT Norwalk
- 代理商 Christopher D. Wait
- 主分类号: H04N1/405
- IPC分类号: H04N1/405 ; H04N1/52 ; B41M3/10
摘要:
The present invention relates to expanding the range of image densities over which the manipulation of differential gloss as may be inherent in halftoned images may be achieved. By selectively applying halftones with anisotropic structure characteristics which are significantly different in orientation while remaining identical in density, a gloss image may be superimposed within an image without the need for special toners or paper. This technique may be enhanced across low and high density areas by application of clear toner. Further, in color systems, light color toner may be applied to low density image areas and dark under-color applied in high density image areas, to expand the range of image densities over which a desired glossmark image will bear an effect.
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