Systems and methods for obtaining a spatial color profile,...

Details Systems and methods for obtaining a spatial color profile,... Systems and methods for obtaining a spatial color profile,...

2007-11-13

2007-11-13

Poon, King Y. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001900, C358S504000, C356S419000, C356S420000, C356S425000, C250S226000, C347S232000

Reexamination Certificate

active

10248387

ABSTRACT:
Tone reproduction curves for calibrating a marking system are obtained using a test pattern with a plurality of patches, preferably a plurality of first test patches extending in a first direction and at least one second test patch extending in a second direction crossing the first direction. Reflectance values are obtained from the first and second test patches. A set of gray balanced tone reproduction curves are obtained based on the reflectance values of the first test patches, and a set of spatial gray balanced tone reproduction curves are obtained based on the reflectance values of the second test patches.

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