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US08049789B2 White balance correction using illuminant estimation 有权
使用光源估计的白平衡校正

White balance correction using illuminant estimation
Abstract:
A method and apparatus for white balance correction using illuminant estimation includes calculating a weighted average of the color coordinates of points in a color image to determine an estimated illuminant of the color image in the color space of an image sensor and selecting white balance correction factors for the color image using the estimated illuminant of the color image and color coordinates of one or more of a number of reference illuminant points in the color space of the image sensor.
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