Invention Grant
- Patent Title: Control system for suppressing black in images
- Patent Title (中): 抑制图像黑色的控制系统
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Application No.: US12390748Application Date: 2009-02-23
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Publication No.: US08228556B2Publication Date: 2012-07-24
- Inventor: Lalit Keshav Mestha , Martin S. Maltz
- Applicant: Lalit Keshav Mestha , Martin S. Maltz
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Fay Sharpe LLP
- Main IPC: H04N1/60
- IPC: H04N1/60 ; G03F3/08 ; G06K9/00

Abstract:
A computerized system, method, and software apparatus is presented which reduces the black level of the printing process in order to substantially remove stray black dots from the finished product of a printing output. Black levels are reduced by updating the print engine regions for the colors W, C, M, Y, MY, CM, CY, and neutral and by assigning a weights each color. The values are used to compute CMKY values. These values are then placed in a gain matrix and stored in a computer memory.
Public/Granted literature
- US20090296159A1 control system for suppressing black in images Public/Granted day:2009-12-03
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