发明授权
US5805313A Color correcting method and color correcting device involving masking
equation variation based upon gray levels for a selected color
失效
颜色校正方法和颜色校正装置涉及根据所选颜色的灰度等级来屏蔽方程变化
- 专利标题： Color correcting method and color correcting device involving masking equation variation based upon gray levels for a selected color
- 专利标题（中）： 颜色校正方法和颜色校正装置涉及根据所选颜色的灰度等级来屏蔽方程变化
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申请号： US124701申请日： 1993-09-22
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公开(公告)号： US5805313A公开(公告)日： 1998-09-08
- 发明人: Shuji Hayashi , Haruo Yamamoto , Koichi Matsuo , Shinji Hayashi
- 申请人： Shuji Hayashi , Haruo Yamamoto , Koichi Matsuo , Shinji Hayashi
- 申请人地址： JPX
- 专利权人： Mita Industrial Co., Ltd.
- 当前专利权人： Mita Industrial Co., Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX4-257897 19920928
- 主分类号： H04N1/407
- IPC分类号： H04N1/407 ; H04N1/46 ; H04N1/60 ; G03F3/08
摘要：
Input data corresponding to three primary colors C, M and Y are subjected to masking correction, to obtain data C', M' and Y'. A correction factor in a masking equation is varied depending on which of three sections into which all the gray levels of each of the input data C, M and Y are divided, the section being a section to which the input data of a selected color belong. As a result, suitable masking correction conforming to the value of the input data is made, thereby to improve color reproducibility of a color image.
公开/授权文献
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