Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2008-08-14
2011-12-06
Baker, Charlotte M (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S518000, C358S535000, C382S162000, C382S167000, C382S205000
Reexamination Certificate
active
08072647
ABSTRACT:
A color conversion apparatus receives first image data including first red-green-blue color data in which the possible values of the red, green, and blue components extend beyond the range from 0% to 100%. The first color data are analyzed into first hue region data, the magnitudes of which are adjusted according to the brightness and/or saturation of the first color data to obtain second and third hue region data. The gamut of colors of the first image data is detected, and matrix coefficients are generated according to the detected gamut. The matrix coefficients are used to perform a matrix operation on the second and third hue region data to obtain second color data, thereby converting the first image data to second image data with conversion characteristics appropriate for the gamut of colors of the first image data.
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Kagawa Shuichi
Someya Jun
Sugiura Hiroaki
Baker Charlotte M
Birch Stewart Kolasch & Birch, LLP.
Mitsubishi Electric Corporation
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