25 January 2010 An efficient spectral-based calibration method for RGB white-balancing gains under various illumination conditions for cell-phone cameras
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Abstract
Significant sensitivity variations among cell-phone camera modules have been observed. As a result, for an effective and reliable white balancing, per-module RGB-ratios calibration/estimation under various illumination conditions is required. Herein, a new technique is proposed which minimizes/simplifies RGB-ratios calibration/estimation process. The proposed method could be based on either direct image capture or spectral numerical processing--the latter is shown to be more flexible and accurate.
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Reza Safaee-Rad, Reza Safaee-Rad, Milivoje Aleksic, Milivoje Aleksic, } "An efficient spectral-based calibration method for RGB white-balancing gains under various illumination conditions for cell-phone cameras", Proc. SPIE 7536, Sensors, Cameras, and Systems for Industrial/Scientific Applications XI, 75360U (25 January 2010); doi: 10.1117/12.840040; https://doi.org/10.1117/12.840040
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