Invention Grant
- Patent Title: Optimal node placement for multi-dimensional profile luts for arbitrary media and halftones using parameterized minimization
- Patent Title (中): 使用参数化最小化的多维轮廓的最佳节点放置用于任意介质和半色调
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Application No.: US11961367Application Date: 2007-12-20
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Publication No.: US07652806B2Publication Date: 2010-01-26
- Inventor: Stuart Alan Schweid , Lalit Keshav Mestha , Zhigang Fan , Alvaro Enrique Gil
- Applicant: Stuart Alan Schweid , Lalit Keshav Mestha , Zhigang Fan , Alvaro Enrique Gil
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Fay Sharpe LLP
- Main IPC: G03F3/08
- IPC: G03F3/08
Abstract:
A method and system for optimal node placement of a color correction table first generate a high resolution color correction table. A low resolution color correction table is generated. Each node of the low resolution color correction table has a corresponding color correction value generated by interpolating the color correction values of the high resolution color correction table. A reconstructed color correction table is generated, and each of the nodes of the reconstructed color correction table has a corresponding color correction value generated by interpolating the color correction values of the low resolution color correction table using an interpolation method identical to an output device interpolation method. Differences between the color correction values of the reconstructed and the high resolution color correction table are quantified into a measure of error, and the node locations of the low resolution color correction table are adjusted, and the procedure is repeated.
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