Facsimile and static presentation processing – Natural color facsimile – Black signal synthesis
Reexamination Certificate
2006-01-10
2010-12-14
Tieu, Benny Q (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Black signal synthesis
C358S001900, C358S518000, C358S519000, C358S520000, C358S515000, C382S162000, C382S167000, C345S589000, C345S600000, C345S603000, C345S604000
Reexamination Certificate
active
07852535
ABSTRACT:
An apparatus and method for converting color data are provided. The method includes generating a CMYK color gamut extended from a CMY color gamut that consists of a cyan (C) colorant, a magenta (M) colorant, and a yellow (Y) colorant, by use of the CMY color gamut and a black (K) colorant; mapping input colors using the generated CMYK color gamut; converting color data of the mapped input colors to CMY data; and converting the CMY data to CMYK data. Accordingly, natural representation and printing of low-lightness colors and high-saturation colors can be attained.
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Kang et al., “Methods of colour gamut extension algorithm development using experimental data”, TENCON 99, Sep. 15-17, 1999, vol. 1, pp. 352-355.
Cho Heui-keun
Cho Min-ki
Kang Byoung-ho
Kim Dae-won
Ramos Javier J
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
Tieu Benny Q
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