Resolution conversion using dither processing

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United States of America Patent

PATENT NO 9639790
SERIAL NO

14633549

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Abstract

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An image processing apparatus includes a dither processing unit configured to perform dither processing on image data having a first resolution M by using a dither threshold value matrix and a resolution conversion unit configured to perform resolution conversion to convert the image data that is generated by the dither processing unit and which has the first resolution M into image data having a second resolution N lower than the first resolution M by using a filter, and the pixel of a growth center of the dither threshold value matrix and the center pixel of the processing using the filter coincide with each other.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Noboru Kawasaki, JP 21 182

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