发明名称 |
IMAGE PROCESSING APPARATUS AND METHOD OF CONTROLLING IMAGE PROCESSING APPARATUS |
摘要 |
A noise elimination method capable of handling even beat noise occurring in an oblique direction is proposed. In an image processing apparatus that is provided with a correcting unit that subtracts cyclic data of beat noise from effective pixel data included in inputted digital image data, the correcting unit comprises: a distributing unit that sequentially and cyclically distributes optical black area pixel data included in the digital image data; an integrating unit to which the optical black area pixel data distributed by the distributing unit is sequentially inputted; a first calculating unit that divides the integration result of the integrating unit by the number of integrations; a minimum value detecting unit that detects a minimum value of the output of the first calculating unit; and a second calculating unit that calculates the minimum value and the division result to obtain the cyclic data of the beat noise.
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申请公布号 |
US2011164155(A1) |
申请公布日期 |
2011.07.07 |
申请号 |
US201113049470 |
申请日期 |
2011.03.16 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HOHDA SAORI;HARA TAKAYUKI |
分类号 |
H04N9/64;G06T5/00;H04N5/335;H04N5/357;H04N5/369;H04N5/372;H04N5/374;H04N5/376;H04N5/378;H04N101/00 |
主分类号 |
H04N9/64 |
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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