Invention Grant
- Patent Title: Image processor and image processing method
- Patent Title (中): 图像处理器和图像处理方法
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Application No.: US12896523Application Date: 2010-10-01
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Publication No.: US08619319B2Publication Date: 2013-12-31
- Inventor: Okinori Tsuchiya , Fumihiro Goto , Akitoshi Yamada , Akihiko Nakatani , Mitsuhiro Ono , Fumitaka Goto , Takashi Fujita , Rie Kajihara , Ayumi Sano , Tomokazu Ishikawa
- Applicant: Okinori Tsuchiya , Fumihiro Goto , Akitoshi Yamada , Akihiko Nakatani , Mitsuhiro Ono , Fumitaka Goto , Takashi Fujita , Rie Kajihara , Ayumi Sano , Tomokazu Ishikawa
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2009-235328 20091009
- Main IPC: G06F15/00
- IPC: G06F15/00 ; G06K1/00 ; G06K15/02

Abstract:
Inputted image data is converted to M number of multi-value data having a lower resolution than the inputted image data, and after quantization processing has been performed for each of the M number of multi-value data, an image is printed by M number of relative movements (M-pass printing) that corresponds to the M number of quantized data. By doing so, when compared with the case in which a resolution reduction process is not performed, it is possible to suppress the number of pixels that become the object of quantization processing, and it becomes possible to output an image with no fluctuation in image density or density unevenness without a decrease in the processing speed.
Public/Granted literature
- US20110085183A1 IMAGE PROCESSOR AND IMAGE PROCESSING METHOD Public/Granted day:2011-04-14
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