Printed color prediction method and device, profile generation method and device, color conversion method and device, and color conversion system

A printed color prediction device for predicting a color reproduction on a protective film-attached printed matter in which a protective film coats a printed matter, the printed color prediction device comprising:

• a spectral reflectance acquisition unit that acquires a spectral reflectance in a protective film non-coating region of the printed matter, the printed matter having a printed surface that the protective film does not coat;
• an optical physical property value estimation unit that performs a process of estimating an optical physical property value of the protective film;
• a spectral distribution acquisition unit that acquires a spectral distribution of an observation light source for the protective film-attached printed matter;
• an interaction property estimation unit that performs a process of estimating a color change property due to an interaction between the printed matter as a base matter and the protective film, the printed matter being coated with the protective film;
• and
• a prediction unit that predicts a colorimetric value of the protective film-attached printed matter, based on the spectral reflectance of the printed matter acquired by the spectral reflectance acquisition unit, the optical physical property value of the protective film estimated by the optical physical property value estimation unit, the spectral distribution of the observation light source acquired by the spectral distribution acquisition unit and the color change property due to the interaction estimated by the interaction property estimation unit.