发明授权
US08936341B2 Inkjet printer and image processor for correcting image data based on color specification values and a target color specification value
有权
喷墨打印机和图像处理器，用于根据颜色规格值和目标颜色规格值校正图像数据
- 专利标题： Inkjet printer and image processor for correcting image data based on color specification values and a target color specification value
- 专利标题（中）： 喷墨打印机和图像处理器，用于根据颜色规格值和目标颜色规格值校正图像数据
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申请号： US12964129申请日： 2010-12-09
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公开(公告)号： US08936341B2公开(公告)日： 2015-01-20
- 发明人: Hidetsugu Kagawa , Nobutaka Miyake , Tohru Ikeda , Akitoshi Yamada , Mitsuhiro Ono , Fumitaka Goto , Ryosuke Iguchi , Tomokazu Ishikawa , Junichi Nakagawa , Senichi Saito
- 申请人： Hidetsugu Kagawa , Nobutaka Miyake , Tohru Ikeda , Akitoshi Yamada , Mitsuhiro Ono , Fumitaka Goto , Ryosuke Iguchi , Tomokazu Ishikawa , Junichi Nakagawa , Senichi Saito
- 申请人地址： JP 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： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2010-225749 20101005
- 主分类号： B41J29/393
- IPC分类号： B41J29/393 ; H04N1/60 ; B41J2/21
摘要：
In the present invention, a first calculation unit calculates, based on image data obtained by reading with a reading unit a plurality of patches formed on a printing medium by a plurality of nozzle regions constituting nozzle array of a printing head, respective color specification values of a plurality of correction regions corresponding to a plurality of nozzle regions constituting the nozzle array. Then, a target value setting unit sets, based on the calculated color specification values of the plurality of correction regions, a target color specification value of the patch. Further, a second calculation unit calculates a difference between each of the color specification values of the plurality of correction regions and the target color specification value as a correction amount. After that, based on the correction amount calculated, image data corresponding to an image printed by each of the plurality of nozzle regions are corrected.
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