Patent ID: 8531667
Filing Date: 2013-09-10
Classification: H04N

Abstract:
1. A print color predicting method for predicting color reproduction of a protective-film-covered print, which is made up of a printed object covered by a protective film, comprising: an acquiring step for acquiring a spectral reflectance of the printed object; an estimating step for estimating an optical material characteristic value of the protective film; and a predicting step for predicting a spectral reflectance of the protective-film-covered print, using the acquired spectral reflectance of the printed object and the estimated optical material characteristic value of the protective film, wherein the estimating step includes the steps of: acquiring spectral reflectances of at least two types of backgrounds, and spectral reflectances in a case where the protective film is disposed on the at least two backgrounds; obtaining relational expressions based on a predetermined mathematical model for the respective backgrounds, using the acquired spectral reflectances and an optical material characteristic value of the protective film as an unknown value; obtaining simultaneous equations from the obtained relational expressions; and estimating the optical material characteristic value of the protective film by solving the simultaneous equations.