发明授权
- 专利标题： Density-adjusting device that changes the gamma characteristics of regions of a copied image based on a difference value to a set of monotonous gamma correction curves
- 专利标题（中）： 将基于差分值将复印图像的区域的伽马特性改变为一组单调伽马校正曲线的密度调节装置
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申请号： US11143733申请日： 2005-06-03
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公开(公告)号： US07580168B2公开(公告)日： 2009-08-25
- 发明人: Takahiro Ikeno
- 申请人： Takahiro Ikeno
- 申请人地址： JP Nagoya-shi
- 专利权人： Brother Kogyo Kabushiki Kaisha
- 当前专利权人： Brother Kogyo Kabushiki Kaisha
- 当前专利权人地址： JP Nagoya-shi
- 代理机构： Banner & Witcoff, Ltd
- 优先权： JP2004-167353 20040604
- 主分类号： G03F3/08
- IPC分类号： G03F3/08 ; H04N1/40
摘要：
In a set of non-reference gamma characteristics corresponding to a density adjustment value, a first region has first characteristics for converting input values to the maximum output value. A second region has second characteristics for converting input values to the minimum output value. A third region defined between the first and second regions has third characteristics for converting input values to intermediate output values. The third characteristics defines a monotonous curve that changes monotonously with respect to change in the amount of the input value. The amount of at least one of the first region and the second region is different from the amount of the corresponding at least one of the first reference region and the second reference region of the reference gamma characteristics by a degree dependent on each density adjustment value.
公开/授权文献
- US20050280866A1 Density-adjusting device 公开/授权日：2005-12-22