Adjusting colorants specified in a digital image

Details Adjusting colorants specified in a digital image Adjusting colorants specified in a digital image

2011-08-23

2011-08-23

Dang, Duy M (Department: 2624)

Image analysis

Color image processing

Color correction

C382S162000

Reexamination Certificate

active

08005299

ABSTRACT:
A method for making a device link (90) for a color management system, with an associated imaging apparatus (20), wherein the device link specifies a transformation of digital-image colorant combinations to imaging-apparatus colorant combinations. The device link converts the digital image (70) to a modified digital image (100) represented using the imaging-apparatus colorant combinations, thereby allowing the imaging apparatus to produce an output image (170) having output-image colors matching reference-image colors at corresponding physical locations in a reference image (80). The method includes establishing an association between selected digital-image colorant combinations and reference-image colors, determining for each associated measured reference-image color a suitable imaging-apparatus colorant combination that will produce the reference-image color when rendered by the imaging apparatus, extending the transformation to all other digital-image colorant combinations by means of a mathematical interpolation, and encoding and encapsulating the transformation in a digital form as a device link.

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