C# Класс Accord.Imaging.Filters.GrayWorld

The grey world normalization makes the assumption that changes in the lighting spectrum can be modeled by three constant factors applied to the red, green and blue channels of color[2]. More specifically, a change in illuminated color can be modeled as a scaling α, β and γ in the R, G and B color channels and as such the grey world algorithm is invariant to illumination color variations.

References: Wikipedia Contributors, "Color normalization". Available at http://en.wikipedia.org/wiki/Color_normalization Jose M. Buenaposada; Luis Baumela. Variations of Grey World for face tracking (Report).