For more details about the underlying skin model, the data collection, and the face database statistics, please see the following paper:
"Analysis of Human Faces Using a Measurement-Based Skin Reflectance Model"
Torrance-Sparrow BRDF ParametersThe free parameters of the physically-based Torrance-Sparrow BRDF model are the roughness m and the scaling coefficient rho_s.
Blinn-Phong BRDF ParametersThe free parameters of the Blinn-Phong BRDF model are the specular exponent n and the scaling coefficient rho_s.
Skin Albedo HistogramsThe RGB components of the skin albedo are made available as histograms. As we show in the paper, these histograms can also be used to transfer face appearance.
The Skin Reflectance DatabaseCurrent database version: May 22, 2006, containing 156 faces.
The database contains Blinn-Phong, Torrance-Sparrow, and albedo coefficients from randomly sampled points in the different face regions shown in this figure:
We structured the data by skin type, age, and gender. We use the following Fitzpatrick skin type system:
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