Patent ID: 8773716

Claim:
A print color predicting apparatus comprising: a data acquirer for acquiring a spectral reflectance of a print; an optical property value estimator for estimating wavelength characteristics of optical property values of a protective film covering the print in a plurality of sets, depending on the spectral reflectance of the print, and then estimating a wavelength characteristic of the optical property values of the protective film for each spectral reflectance of the print; and a spectral reflectance predictor for predicting a spectral reflectance of a protective-film-covered print, using the spectral reflectance of the print, which is acquired by the data acquirer, and the wavelength characteristic of optical property values of the protective film, which is estimated by the optical property value estimator for each spectral reflectance of the print, wherein the optical property value estimator is configured to perform at least one of 1) an interpolating and extrapolating to determine the estimated wavelength characteristics of the optical property values and 2) an approximation to determine the estimated wavelength characteristics of the optical property values.