- 专利标题： Image processing apparatus, region detection method and computer-readable, non-transitory medium
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申请号： US14831596申请日： 2015-08-20
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公开(公告)号： US09712717B2公开(公告)日： 2017-07-18
- 发明人: Ryo Hayashi , Kiyoto Kosaka , Masayoshi Hayashi
- 申请人： PFU LIMITED
- 申请人地址： JP Kahoku-shi, Ishikawa
- 专利权人： PFU Limited
- 当前专利权人： PFU Limited
- 当前专利权人地址： JP Kahoku-shi, Ishikawa
- 代理机构： Lewis Roca Rothgerber Christie LLP
- 优先权： JP2015-058637 20150320
- 主分类号： G06K9/48
- IPC分类号： G06K9/48 ; H04N1/393 ; H04N1/00 ; H04N1/48 ; H04N1/60 ; G06T7/11 ; G06T7/12 ; G06T7/194 ; G06T7/136 ; G06K9/00 ; G06K9/32
摘要：
An image processing apparatus includes a presumed background region extractor for extracting a presumed background region presumed to include an image of a background from an input image, a threshold value determination module for determining a threshold value based on pixels in the presumed background region, an edge pixel extractor for using the threshold value to extract edge pixels from the input image, and a document region detector for detecting a document region from the edge pixels.
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