Image analysis – Color image processing
Reexamination Certificate
2005-11-10
2009-12-08
Alavi, Amir (Department: 2624)
Image analysis
Color image processing
C358S001900
Reexamination Certificate
active
07630540
ABSTRACT:
An image processing device has a color-space data storage section storing a*b*-plane division data concerning a dividing method of an a*b*-plane in a L*a*b* color space; a LUT storage section storing LUTs, each of which combines color zones, those into which the a*b*-plane is divided, and a printing order of ink colors used for multicolor-printing with a relationship between multivalued pixel values in an original color-space and those in an ink color-space; a controller obtaining a*b*-values of the ink colors from a printer; a LUT selector discriminating which of the color zones the obtained a*b*-values belong to, and selecting a LUT corresponding to a combination of the discriminated color zones and the printing order of the ink colors from the LUTs; a color converter converting multivalued pixel values of a multicolor original image in the original color-space into multivalued pixel values in the ink color-space, based on the selected LUT.
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Alavi Amir
Meyer Jerald L.
Protigal Stanley N.
Riso Kagaku Corporation
The Nath Law Group
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