Facsimile and static presentation processing – Natural color facsimile – Color correction
Reexamination Certificate
2005-06-07
2009-10-20
Zimmerman, Mark K (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Color correction
C358S001900, C382S162000, C382S167000
Reexamination Certificate
active
07605959
ABSTRACT:
A method comprises receiving a set of color transfer curves, receiving a digital image file having a plurality of pixel stacks, for each pixel stack in the digital image file: identify initial percent dot values for the pixel stack, determining a degree of affiliation of the pixel stack to each of seven color families including neutral, cyan, magenta, yellow, red, green, and blue, determining a curve adjustment value for each color transfer curve for each initial percent dot value, applying the curve adjustment values of the color transfer curves to the initial percent dot value and generating a color-correct percent dot value, and replacing the initial percent dot value with the color-corrected percent dot value. The above steps are repeated until all pixel stacks in the digital image file are processed.
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