Invention Grant
- Patent Title: Document background suppression performed during color space conversion
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Application No.: US15059748Application Date: 2016-03-03
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Publication No.: US09898693B2Publication Date: 2018-02-20
- Inventor: Xing Li , Vignesh Doss , Sainarayanan Gopalakrishnan
- Applicant: Xerox Corporation
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Gibb & Riley, LLC
- Main IPC: G06K15/00
- IPC: G06K15/00 ; H04N1/40 ; G06K15/02 ; H04N1/60 ; H04N1/407

Abstract:
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.
Public/Granted literature
- US20170255849A1 DOCUMENT BACKGROUND SUPPRESSION PERFORMED DURING COLOR SPACE CONVERSION Public/Granted day:2017-09-07
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