发明名称 |
Document reading apparatus having a function of determining effective document region based on a detected data |
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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申请公布号 |
US5377019(A) |
申请公布日期 |
1994.12.27 |
申请号 |
US19920983672 |
申请日期 |
1992.12.01 |
申请人 |
MINOLTA CO., LTD. |
发明人 |
OKISU, NORIYUKI;MATSUDA, SHINYA;NAKAMURA, SATOSHI;MINAKUTI, JUN |
分类号 |
H04N1/00;H04N1/10;H04N1/193;H04N1/38;(IPC1-7):H04N1/38 |
主分类号 |
H04N1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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