Image processing apparatus and control method thereof

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United States of America Patent

PATENT NO 8957995
APP PUB NO 20130194463A1
SERIAL NO

13879123

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Abstract

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A black image captured in a light-shielded state is obtained, and the streak intensity is determined for each pixel of the black image from the absolute value of an AC component in a region containing the pixel. An extraction image which extracts streak-like fixed pattern noise in a captured image is generated using a black image obtained by applying, to the obtained black image, the first filter for reducing random noise in the first direction.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koide, Yuji Yokohama, JP 33 361
Ogino, Hiroshi Tokyo, JP 95 623

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