Split white balance processing of a color image
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Mar 19, 1997
filing date -
Mar 19, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for correcting a color video signal for white balance comprising the steps of: providing a digital color image signal having a sequence of monocolor pixels, wherein each of the pixels represents one color of first, second, and third different colors, which are repeated in a preset pattern; coarse white balance processing each monocolor pixel for a coarse white balance; spatial processing the sequence of monocolor pixels to produce a sequence of tricolor pixels, wherein each of the tricolor pixels represents the first, second, and third different colors; and color correction and fine white balance processing each of the tricolor pixels by means of a matrix multiplier for color correction and fine white balance.
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