发明授权
US07884969B2 Image processing apparatus, printing apparatus and image processing method
有权
图像处理装置，打印装置和图像处理方法
- 专利标题： Image processing apparatus, printing apparatus and image processing method
- 专利标题（中）： 图像处理装置，打印装置和图像处理方法
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申请号： US11949385申请日： 2007-12-03
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公开(公告)号： US07884969B2公开(公告)日： 2011-02-08
- 发明人: Hideki Takemura , Shigeru Fujita , Hiroki Horikoshi , Akira Ichimura , Takeshi Kuga , Hiroyuki Hosogoshi
- 申请人： Hideki Takemura , Shigeru Fujita , Hiroki Horikoshi , Akira Ichimura , Takeshi Kuga , Hiroyuki Hosogoshi
- 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： JP2006-331000 20061207
- 主分类号： G06K15/00
- IPC分类号： G06K15/00 ; G06K9/00 ; H04N1/407 ; H04N1/46
摘要：
An image processing apparatus, a printing apparatus and an image processing method are provided which can perform quantization processing on image data at high speed based on an error diffusion method while at the same time avoiding degradations in a quality of printed images. When an error value represented by error data is a particular value, the error data is converted into compressed error data with a data volume less than that of the original error data.
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