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Volume: 21 | Article ID: art00021
Rank-Based Illumination Estimation
  DOI :  10.2352/CIC.2013.21.1.art00021  Published OnlineJanuary 2013

A new two-stage illumination estimation method based on the concept of rank is presented. The method first estimates the illuminant locally in subwindows using a ranking of digital counts in each color channel and then combines local subwindow estimates again based on a ranking of the local estimates. The proposed method unifies the MaxRGB and Grayworld methods. Despite its simplicity, the performance of the method is found to be competitive with other state-of-the art methods for estimating the chromaticity of the overall scene illumination.

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Lilong Shi, Brian Funt, "Rank-Based Illumination Estimationin Proc. IS&T 21st Color and Imaging Conf.,  2013,  pp 118 - 121,

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