Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2007-05-15
2007-05-15
Ye, Lin (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S225100, C382S167000
Reexamination Certificate
active
10217855
ABSTRACT:
A system and method for efficiently performing a white balance operation preferably includes an electronic camera device that captures image data using a imaging device. A color manager may then convert the captured image data into perceptual color space data. The color manager may next create a histogram of chromaticity vectors corresponding to pixels from the perceptual color space data. The color manager may then derive a neutral core vector corresponding to a neutral core peak from the histogram. The color manager may advantageously utilize the neutral core vector to identify a scene illuminant corresponding to color channel amplifier gains, and may then adjust the captured image data with the color channel amplifier gains to thereby complete the white balance operation.
REFERENCES:
patent: 6181321 (2001-01-01), Zhao et al.
patent: 6377702 (2002-04-01), Cooper
patent: 6788813 (2004-09-01), Cooper
patent: 6791606 (2004-09-01), Miyano
patent: 2003/0052978 (2003-03-01), Kehtamavaz et al.
patent: 2005/0212928 (2005-09-01), Classen et al.
Douglas J.
Koerner Gregory J.
Redwood Patent Law
Sony Corporation
Sony Electronics Inc.
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