Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2005-10-25
2009-06-02
Tran, Nhan T (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S370000, C382S167000
Reexamination Certificate
active
07542077
ABSTRACT:
The present invention is directed to improving the accuracy of white balance adjustment. An image input from an image capture device10is divided into blocks, and white balance gains are calculated from a representative value of each block. Prior to calculation of the representative value of each block, a color range determining circuit13determines whether each pixel included in each block belongs to a light source color range, or belongs to an apparent object color range. A representative value of that block is calculated from remaining pixels other than pixels determined to belong to the apparent object color range. Thus, by preventing the representative value from being affected by an object color, the accuracy of white balance gains is improved.
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Diep Trung
Eastman Kodak Company
Tran Nhan T
Watkins Peyton C.
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