发明名称 |
Image processing apparatus, image reading apparatus, image forming apparatus, and methods therefor |
摘要 |
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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申请公布号 |
US2008137154(A1) |
申请公布日期 |
2008.06.12 |
申请号 |
US20070802103 |
申请日期 |
2007.05.18 |
申请人 |
FUJI XEROX CO., LTD. |
发明人 |
NAKAYA FUMIO;ICHIKAWA HIROKAZU |
分类号 |
H04N1/04 |
主分类号 |
H04N1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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