Four-way calibration of a digital camera using patch...

Details Four-way calibration of a digital camera using patch... Four-way calibration of a digital camera using patch...

2002-08-01

2008-08-19

Coles, Sr., Edward L. (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S513000, C358S909100, C358S475000, C358S906000, C348S220100, C348S221100

Reexamination Certificate

active

07414758

ABSTRACT:
A method of improving a digital image captured by a digital camera comprising: providing a digital camera having a memory for storing known values of a color chart having a plurality of color patches of different colors and a digital image processor, using the digital camera to capture an image of the color chart to produce image values of the color patches of the color chart; operating the digital image processor to process at least some of the color patch imaged values and the stored known values of the color patches to produce a color correction matrix or profile; and storing the color correction matrix or profile to correct color images subsequently acquired by the digital camera.

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