Colorimetric value calculating method, profile generating method, color conversion method, color conversion apparatus, and computer-readable recording medium with color conversion program recorded therein
AssigneeFUJIFILM Corporation
InventorShuhei Horita
Life of this patent
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Abstract
First spectral data (spectral transmittance) of a printed object, and second spectral data (spectral reflectance) of the printed object are obtained. Further, third spectral data (spectral radiance distribution) of a transmissive light source, and fourth spectral data (spectral radiance distribution) of a reflective light source are obtained. Then, using the first, second, third and fourth spectral data, colorimetric value data of the printed object in a given observational environment is calculated.
Claims8
A colorimetric value calculating method for calculating a colorimetric value of a printed object including an image formed on a light-transmissive medium in an observational environment in which both a transmissive light source and a reflective light source coexist, comprising:
- a first acquisition step for acquiring a spectral transmittance of the printed object and a spectral reflectance of the printed object;
- a second acquisition step for acquiring a spectral distribution of the transmissive light source and a spectral distribution of the reflective light source;
- and
- a calculating step for calculating the colorimetric value of the printed object in the observational environment, using the obtained spectral transmittance of the printed object, the obtained spectral reflectance of the printed object, the obtained spectral distribution of the transmissive light source, and the obtained spectral distribution of the reflective light source.
Dependencies are inferred from the claim text.