Document background suppression performed during color space conversion

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United States of America Patent

PATENT NO 9898693
SERIAL NO

15059748

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Abstract

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An electronic image in a first color space, used by image acquisition devices, is obtained and converted into a second color space with a larger gamut, to produce a second color space image. Corrections are made to the second color space image to produce a corrected image, without performing background suppression. The corrected image is converted into a third color space, used by printing devices, to produce a third color space image, and this process of converting the corrected image into the third color space includes performing background suppression. This process of converting the corrected image into the third color space samples nodes of the second color space values, classifies the nodes as background nodes or non-background nodes, multiplies the second color space values of the background nodes by a percentage less than 100%, and after multiplying, interpolates values between the nodes.

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Patent Owner(s)

  • XEROX CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doss, Vignesh Theni, IN 17 28
Gopalakrishnan, Sainarayanan Chennai, IN 65 100
Li, Xing Webster, US 326 1824

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