- 专利标题： Image processing apparatus, image processing system, image processing method, and computer-readable storage medium
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申请号： US11245121申请日： 2005-10-07
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公开(公告)号： US20060029274A1公开(公告)日： 2006-02-09
- 发明人: Hitoshi Inoue
- 申请人： Hitoshi Inoue
- 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
- 优先权： JP2001-070711 20010313
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
An image processing apparatus creates a pixel value histogram of an objective image, and approximates a predetermined range of the created histogram by a bended line formed from two straight lines. Then the apparatus extracts a pixel value at a boundary between a predetermined region and another region of the objective image in accordance with the approximation.