Modelling Reflectance by Logarithmic Basis Functions


Non-linear models of reflectance based on exponentiation of linear combinations of `pseudo-dye' basis functions are compared to linear models of the same dimension. Tests with the new Kodak database of 354 reflectances show that the non-linear model makes a modest gain over its linear counterpart.

Full text (postscript)

Full text (zipped postscript)