Patent ID: 8059165

Claim:
A color processing apparatus comprising: a first inputting section, configured to input a first image obtained by capturing a white paper placed under an illuminant having known illuminant information using an image capturing device, together with identification information of the illuminant; an analyzer, configured to analyze a chromaticity of an image; an obtaining section, arranged to obtain illuminant information of the illuminant having the known illuminant information, together with the identification information of the illuminant; a generator, configured to generate a table obtained by associating the chromaticity of the first image analyzed by said analyzer with the obtained illuminant information based on the identification information; a second inputting section, configured to input a second image obtained by capturing the white paper placed under an illuminant having unknown illuminant information using the image capturing device; and an estimator, configured to estimate, by referring to the table, illuminant information of the illuminant having the unknown illuminant information from chromaticity of the second image analyzed by said analyzer.