发明授权
- 专利标题： Color image processing apparatus
- 专利标题（中）： 彩色图像处理装置
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申请号： US327098申请日： 1989-03-22
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公开(公告)号： US5047844A公开(公告)日： 1991-09-10
- 发明人: Yoshinori Ikeda , Tetsuya Ohnishi , Masatomo Shimizu
- 申请人： Yoshinori Ikeda , Tetsuya Ohnishi , Masatomo Shimizu
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-069979 19880324
- 主分类号： B41J2/525
- IPC分类号： B41J2/525 ; H04N1/407 ; H04N1/46 ; H04N1/48 ; H04N1/58 ; H04N1/60
摘要：
An edge portion of an achromatic area is detected to emphasize the edge portion and reduce the density of a chromatic area near the edge portion, and the reduced chromatic portion signal is further suppressed, such that the half tone area can be processed at high gradation and the black character and line image can be outputted with more black and high resolution, resulting in less color bleeding.
公开/授权文献
- US5575517A Portable, hand-operated hoist 公开/授权日：1996-11-19
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