An interactive painting system using physical based Pigment mixture model

Abstract

We propose a pigment mixing model by using the reflectivities of pigments which are obtained by a spectrum measuring instrument. With our model, it is possible to generate adequate color mixtures that are impossible to make in previous model. We propose a pigment mixing model by means of a concept of a basic subtractive color mixing, the Kubelka-Munk's theory, and the Duncan's theory. We also propose an interactive painting tool as an application of our digital pigment model.