Color printing method and apparatus which compensates for Abney effect

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United States of America Patent

PATENT NO 5438649
SERIAL NO

07967050

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Method and apparatus for color printing according to a printer table in which the hue angle of the colors in the printer table are warped so as to compensate for the Abney effect. A color printer gamut edge is first determined through printer gamut measurement, and color primary values within the printer gamut and outside the printer gamut are calculated and inserted into the printer table. If desired, a border table may be provided for colors outside the printer table. The hue angles for the printer table and the border table are then warped, for example, by stretching some ranges of hue angles and by compressing other ranges of hue angles, so that out-of-gamut colors are printed with a hue that is perceived to be the same as the hue of the desired color.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHAJAPAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ruetz, Brigitte San Bruno, CA 4 180

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