发明名称 Automatic white balance using non-uniform averaging
摘要 The specification disclosed embodiments of an apparatus comprising an automatic white balance (AWB) circuit coupled to a pixel array to transform red, green, and blue color data obtained from each pixel into x and y chromaticity values for each pixel, determine a distance between the Planckian locus and the x and y chromaticity values for each pixel, determine a weight for each pixel based on the distance between its x and y chromaticity values and the Planckian locus, determine red, green, and blue adjustments for each pixel using its weight, and apply a white balance adjustment to the red, green and blue values obtained from each pixel. Other embodiments are also disclosed and claimed.
申请公布号 US2009309995(A1) 申请公布日期 2009.12.17
申请号 US20080137467 申请日期 2008.06.11
申请人 OMNIVISION TECHNOLOGIES, INC. 发明人 XIONG WEIHUA;KUANG JIANGTAO
分类号 H04N9/73 主分类号 H04N9/73
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