Patent ID: 7450158

Claim:
A spectrum and color reproduction system, comprising: a color-image input section; a color-image output section; and a color converting section which converts a color signal from the color-image input section into a color signal for the color-image output section by using: a color reproduction property of the color-image input section which comprises information on a relationship between the color signal from the color-image input section and one of a spectrum and a spectral reflectance; a color reproduction property of the color-image output section which comprises information on a relationship between the color signal for the color-image output section and one of a spectrum and a spectral reflectance; and a color spatial converting property comprising at least one of a color matching function and an illumination-light spectrum which prescribes a reflection spectrum for the spectral reflectance; wherein the color converting section comprises processing selecting section which selects a color converting algorithm based on a number of sets of color matching functions comprised in the color spatial converting property, and the color converting section converts the color signal from the color-image input section into the color signal for the color-image output section based on the selected color converting algorithm.