Facsimile and static presentation processing – Natural color facsimile – Color correction
Reexamination Certificate
2011-04-26
2011-04-26
Poon, King Y (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Color correction
C358S001600, C358S001900, C358S003230, C358S504000, C358S535000, C382S167000, C382S156000
Reexamination Certificate
active
07933053
ABSTRACT:
A spot color dictionary is fine tuned or updated. Localized color production models are determined for spot colors of interest to be produced by an associated document processing system or printer. Measurements are made of colors of produced spot colors. Optionally, measurements are made of colors of test patches that are based on perturbations from the colors of the spot colors. In determining a model for the production of a target spot color, measurement data related to colors that are closer in color space to a given target color is given a higher weight than is measurement data related to colors that are further in color space from the target color. Accordingly, the model is localized to the region of color space about the target color and therefore, more accurately predicts a colorant recipe for the target color than would interpolation based on a full gamut, or more general model.
REFERENCES:
patent: 5309246 (1994-05-01), Barry et al.
patent: 5649072 (1997-07-01), Balasubramanian
patent: 6157469 (2000-12-01), Mestha
patent: 6344902 (2002-02-01), Duke et al.
patent: 6621498 (2003-09-01), Handley et al.
patent: 6744531 (2004-06-01), Mestha et al.
patent: 6766051 (2004-07-01), Klassen et al.
patent: 7616346 (2009-11-01), Stevens
patent: 2002/0093684 (2002-07-01), Bares et al.
patent: 2005/0030560 (2005-02-01), Maltz et al.
Raja Balasubramanian et al, Refinement of printer transformations using weighted regression, 1996, SPIE vol. 2658, pp. 334-340.
U.S. Appl. No. 11/507,405, filed Aug. 21, 2006, Hancock et al.
Bala Raja
Dalal Edul N.
Wu Wencheng
Fay Sharpe LLP
Poon King Y
Washington Jamares
Xerox Corporation
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