发明名称 |
Image reading apparatus, black correction executing method, and a computer-readable medium storing black correction executing program |
摘要 |
The present invention provides an image reading apparatus that includes: a photoelectric sensor including plural reading pixels aligned in one direction and output an electric signal depending on the amount of light from an image on the document; a read control section that reads a document image with the photoelectric sensor in accordance with a read instruction, and obtains image data; a black correction section that performs a black correction to adjust an output under dark condition of each reading pixel to a value within a predetermined range, the output under dark condition being an electric signal output when the amount of light input is zero; and a black correction execution determining section that determines whether to perform the black correction, when the read interval between each two document sheets of the multi-page document is equal to or shorter than a predetermined period of time.
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申请公布号 |
US8508807(B2) |
申请公布日期 |
2013.08.13 |
申请号 |
US20090568219 |
申请日期 |
2009.09.28 |
申请人 |
TANAKA AKIHIKO;SHINTANI KAZUAKI;GONO SHINICHI;TAKEBE YOSUKE;KAMIO MITSUGU;TADA MAYUMI;FUJI XEROX CO., LTD. |
发明人 |
TANAKA AKIHIKO;SHINTANI KAZUAKI;GONO SHINICHI;TAKEBE YOSUKE;KAMIO MITSUGU;TADA MAYUMI |
分类号 |
H04N1/04;H04N1/40 |
主分类号 |
H04N1/04 |
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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