This paper proposes a compact description method for image gamut shell. 3D
Hiroaki Kotera, Ryoichi Saito, "Compact Description of 3D Image Gamut by Singular Value Decomposition" in Proc. IS&T 9th Color and Imaging Conf., 2001, pp 56 - 61, https://doi.org/10.2352/CIC.2001.9.1.art00011