On Curvature of Color Spaces and its Implications

摘要: In this paper we discuss the role of curvature in context color spaces. Curvature is a differential geometric property spaces that has attracted less attention than other properties like metric or geodesics. argue space important since are essential construction coordinate systems. Only with negative zero everywhere allow Munsell-like coordinates geodesics, shortest paths between two colors, never intersect. geometry such systems known as Riemann and they generalizations well-known polar coordinates. We investigate measurement sets just-noticeable-difference (jnd) ellipses constructed from them. illustrate by investigating normal CIELUV CIELAB An algorithsm also shown to build multipatch for positive curvature.