发明授权
US5377019A Document reading apparatus having a function of determining effective
document region based on a detected data
失效
具有基于检测到的数据确定有效文档区域的功能的文档读取装置
- 专利标题： Document reading apparatus having a function of determining effective document region based on a detected data
- 专利标题（中）： 具有基于检测到的数据确定有效文档区域的功能的文档读取装置
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申请号： US983672申请日： 1992-12-01
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公开(公告)号： US5377019A公开(公告)日： 1994-12-27
- 发明人: Noriyuki Okisu , Shinya Matsuda , Satoshi Nakamura , Jun Minakuti
- 申请人： Noriyuki Okisu , Shinya Matsuda , Satoshi Nakamura , Jun Minakuti
- 申请人地址： JPX Osaka
- 专利权人： Minolta Co., Ltd.
- 当前专利权人： Minolta Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX3-348001 19911202; JPX4-248757 19920824
- 主分类号： H04N1/00
- IPC分类号： H04N1/00 ; H04N1/10 ; H04N1/193 ; H04N1/38
摘要：
A document reading apparatus which can determine an effective image pickup area containing no object such as operator's hands or fingers pressing a document and rectify image data prior to imaging operation, making use of a difference of the object from the document in chromaticity, luminous density, and the like.
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