Image processing apparatus and control method for applying spatial filters to images

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United States of America Patent

PATENT NO 10027848
APP PUB NO 20170041502A1
SERIAL NO

15224990

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An image processing apparatus divides an input image into a plurality of band area images, stores the respective band area images in a band memory, and performs image processing. The apparatus comprises: a storage unit configured to store filter coefficients having a two-dimensional reference area of M pixels in a first direction and N pixels in a second direction orthogonal to the first direction; and a spatial filter unit configured to apply, to the band area image stored in the band memory, a spatial filter using the filter coefficients. The filter coefficients are set as the filter coefficients so as to refer to pixels for every K pixels in the second direction, and the spatial filter unit sequentially applies the spatial filter to the band area image K times in the second direction.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fuse, Koji Tokyo, JP 9 62
Ishikawa, Hisashi Urayasu, JP 232 2444
Kato, Minako Kawasaki, JP 79 913
Yamada, Akitoshi Yokohama, JP 295 3025
Yanai, Tomokazu Yokohama, JP 36 222

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