Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2007-04-03
2007-04-03
Poon, King Y. (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S001900, C709S223000
Reexamination Certificate
active
10143543
ABSTRACT:
A method and apparatus to predict the color of an overprint of a set of colorants at a set of respective coverage percentages on a substrate of a substrate type using a printing technique. The colorants include some for which a device profile is provided. The method includes determining the colorant parameters of the device profile colorants; determining the spectrum of the substrate, providing spectral colorant parameters for the non-device profile colorants, and determining the color of the overprint. One version including modifying the data of the device profile such that the colorant parameters determined in the step of determining colorant parameters determines the colorant parameters of modified colorants that match the color of the device profile colorants and that cover at least the gamut of the device profile colorants. In one version, the step of determining the determining the color of the overprint includes determining the coverage percentages of the modified colorants corresponding to the colorants of each subset, and using the coverage percentages of the modified colorants to determine the color of the overprint.
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Geurts Wim
Meireson Baldewin
Sundermann Erik
Van de Capelle Jean-Pierre
Agfa-Geuaert N.V.
Ebrahimi Saeid
Poon King Y.
Sabourin Robert A.
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