Patent ID: 8619324

Claim:
A color converting method comprising: a first acquiring step of acquiring an optical property value of a first print printed on a first medium and an optical property value of a second print printed on a second medium, which is either the same as or different from the first medium; a second acquiring step of acquiring an optical property value of a second protective film that covers the second print; a third acquiring step of acquiring a spectral distribution of a first light source, which serves as an observational light source for the first print, and a spectral distribution of a second light source, which is either the same as or different from the first light source and which serves as an observational light source for a second protective-film-covered print produced by covering the second print with the second protective film; a first generating step of generating a first profile corresponding to the first print based on the acquired optical property value of the first print and the acquired spectral distribution of the first light source; a second generating step of generating a second profile corresponding to the second protective-film-covered print based on the acquired optical property value of the second print, the acquired optical property value of the second protective film, and the acquired spectral distribution of the second light source; and a color converting step for converting colors of image data representing an image of the first print into colors of image data representing an image of the second print, using the generated first profile as an input profile and the generated second profile as an output profile.