SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
A model of visual adaptation for realistic image synthesis
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
IEEE Transactions on Pattern Analysis and Machine Intelligence
A multiscale model of adaptation and spatial vision for realistic image display
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Picture perfect RGB rendering using spectral prefiltering and sharp color primaries
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
Color constancy under varying illumination
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
Practical colour constancy
Light mixture estimation for spatially varying white balance
ACM SIGGRAPH 2008 papers
Modeling human color perception under extended luminance levels
ACM SIGGRAPH 2009 papers
Color Constancy
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We propose a method that improves automatic colour correction operations for rendered images. In particular, we propose a robust technique for estimating the visible and pertinent illumination in a given scene. We do this at very low computational cost by mostly re-using information that is already being computed during the image synthesis process. Conventional illuminant estimations either operate only on 2D image data, or, if they do go beyond pure image analysis, only use information on the luminaires found in the scene. The latter is usually done with little or no regard for how the light sources actually affect the part of the scene that is being viewed. Our technique goes beyond that, and also takes object reflectance into account, as well as the incident light that is actually responsible for the colour of the objects that one sees. It is therefore able to cope with difficult cases, such as scenes with mixed illuminants, complex scenes with many light sources of varying colour, or strongly coloured indirect illumination.