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Volume: 7 | Article ID: art00019
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White Point Estimation for Uncalibrated Images
  DOI :  10.2352/CIC.1999.7.1.art00019  Published OnlineJanuary 1999
Abstract

Color images often must be color balanced to remove unwanted color casts. We extend previous work on using a neural network for illumination, or white-point, estimation from the case of calibrated images to that of uncalibrated images of unknown origin. The results show that the chromaticity of the ambient illumination can be estimated with an average CIE Lab error of 5ΔE. Comparisons are made to the grayworld and white patch methods.

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Vlad C. Cardei, Brian Funt, Kobus Barnard, "White Point Estimation for Uncalibrated Imagesin Proc. IS&T 7th Color and Imaging Conf.,  1999,  pp 97 - 100,  https://doi.org/10.2352/CIC.1999.7.1.art00019

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Copyright © Society for Imaging Science and Technology 1999
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