Image processing apparatus, method, and product for reducing color unevenness based on edge information

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United States of America Patent

PATENT NO 11247482
APP PUB NO 20210031538A1
SERIAL NO

16929792

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Abstract

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An image processing apparatus includes a processing unit that converts first input image data for a first region and second input image data for a second region to reduce a difference between first region recorded image density and second region recorded image density, and generates dot position data of a dot to be generated in each of the first and second regions based on the dot data after the conversion processing. The acquisition unit acquires edge information indicating a first object pixel edge of an image pixel for the first region and a second object pixel edge of an image pixel for the second region. Based on the acquired edge information, conversion and generation processing are performed in such a manner that a color signal of an edge pixel is increased/reduced to a degree lower than a degree to which a color signal of a non-edge object pixel is increased/reduced.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHA30-2 SHIMOMARUKO 3-CHOME OHTA-KU TOKYO 1468501 ?1468501

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakagawa, Junichi Tokyo, JP 116 601
Yanai, Yumi Yokohama, JP 57 232

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