Skin is an important object in many machine vision, computer graphics and display applications. Skin colours have been imagined both for professional and leisure purposes, and skin reflectances are sought for more illumination and device independent characterization. Reflectance data is useful for colour correction and simulating the skin colour appearances. Different skin tone appearances have been even simulated using the separate reflectances of skin colourants.
To study facial skin image formation and acquisition under different camera and illumination conditions, we have introduced a unique Physics-based Face Database for research purposes (Paper II). The database has been delivered to several world famous universities and companies (by 8.2.2002 together 43 full or partial copies). The database has been used for skin reflectance analysis and developing a colour correction method for imperfect data.