Shade correction for lens in image sensor

Details Shade correction for lens in image sensor Shade correction for lens in image sensor

2008-02-01

2011-11-08

Daniels, Anthony J (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S615000, C382S247000

Reexamination Certificate

active

08054350

ABSTRACT:
An apparatus for performing shade correction for a lens in an image sensor includes a gain profile extractor, a common profile calculator, a gain controller calculator, and a memory device. The gain profile extractor generates a respective channel gain profile for each of a plurality of color channels from image data. The common profile calculator generates a common profile from the channel gain profiles. The gain controller calculator generates a respective gain controller for each of the plurality of color channels from the common profile and the channel gain profiles. A memory device stores the common profile and the gain controllers.

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