Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-10-17
2010-02-09
Coles, Edward L (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S518000, C358S535000, C382S162000, C382S167000, C382S205000
Reexamination Certificate
active
07660015
ABSTRACT:
A color conversion apparatus receives red-green-blue color data, calculates characteristic information and first hue region data from the color data, adjusts the first hue region data according to the characteristic information to obtain second to N-th hue region data, N being an integer equal to or greater than three, generates matrix coefficients for the second to N-th hue region data, and performs a matrix operation on the second to N-th hue region data to obtain color data with four or more color components. Color data with three primary components are thereby converted to color data with four or more primary components by simple calculations, without using a large amount of memory space.
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Kagawa Shuichi
Someya Jun
Sugiura Hiroaki
Baker Charlotte M
Birch & Stewart Kolasch & Birch, LLP
Coles Edward L
Mitsubishi Electric Corporation
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