A Planar Vector Model of Color Vision and the Application of Its Color Space to Color Reproduction

A new color space for color reproduction has been developed from an empirical model of color vision based on a tragonally symmetric, planar arrangement of three response vectors, which separates a visual perception via tristimulus values into achromatic and chromatic components and subsequently recombines them as a correlate of purity visually. Since three visual response vectors are mutually opposed, the model is called the mutually opposed, trichromatic response (MOTR) model. The MOTR model predicts many visual responses such as unique hues, wavelength discrimination, and defective color vision. Since the model has the advantage of directly representing a color as two chromatic components and one achromatic component, it is particularly useful for halftone color reproduction, especially via complete GCR.