Image processing apparatus, image reading apparatus, image...

Details Image processing apparatus, image reading apparatus, image... Image processing apparatus, image reading apparatus, image...

2007-05-18

2010-10-26

Coles, Edward L (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S474000, C358S504000, C358S518000, C358S520000, C382S162000, C382S167000, C382S191000, C250S226000

Reexamination Certificate

active

07821670

ABSTRACT:
An image processing apparatus comprises: a first calculation section that calculates a plurality of spectral reflectances at a plurality of wavelengths based on intensities of light irradiating an object and reflected from the object, the light having a certain spectral energy distribution; a second calculation section that calculates color descriptor values of the object based on the spectral reflectances calculated by the first calculation section; a third calculation section that calculates a set of factors when the color descriptor values are expressed using a linear combination of a predetermined plurality of eigenvectors, factors associated with the respective eigenvectors, and either spectral energy of a reference light or theoretical spectral energy of a virtual light; and an output section that outputs the factors calculated by the third calculation section.

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