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This paper presents a novel method to estimate illuminationdependent properties in image synthesis prior to rendering. A preprocessing step is described in which a linear image basis is developed and a lighting-independent formulation defined. A reflection function, similar to hemispherical reflectance, approximates normal Lambertian shading. Intensity errors resulting from this approximation are reduced by use of a polynomial gamma correction function and scaling to a normalized display range.doi:10.1109/visual.2001.964535 dblp:conf/visualization/ScogginsMM01 fatcat:riuan4hh4fbixicoftv3yklsw4