Color image processing apparatus

Image analysis – Color image processing – Color correction

Reexamination Certificate

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C358S520000

Reexamination Certificate

active

07010162

ABSTRACT:
A color image processing apparatus reproduces color data of a subject at higher accuracy by estimating the spectral reflectance of the subject from the color chip basis function vn (λ) which can expand the spectral reflectances of all color chips of the reference chart and the expansion coefficients B of the color chips. The color image processing apparatus uses an image processing device to which a subject shooting signal Q shot by the color image input device and a reference chart shooting signal G taken from a plurality of color chips each having a spectral reflectance, is known.

REFERENCES:
patent: 5805213 (1998-09-01), Spaulding et al.
patent: 5864364 (1999-01-01), Ohyama et al.
patent: 5956015 (1999-09-01), Hino
patent: 6043909 (2000-03-01), Holub
patent: 6075563 (2000-06-01), Hung
patent: 6081254 (2000-06-01), Tanaka et al.
patent: 6466334 (2002-10-01), Komiya et al.
patent: 6549653 (2003-04-01), Osawa et al.
patent: 09-172649 (1997-06-01), None
Journal of Imaging Science and Technology, vol. 40, No. 5, Sep., Oct. 1996, pp. 422-430, “Principal Component Analysis of Skin Color and its Application to Colormetric Color Reproduction on CRT Display and Hardcopy”.
“A Generalised Method For Spectral Scanner Characterization” by Lindsay W. MacDonald and M. Ronnier Luo, Color Image Science, Exploiting Digital Media, pp. 116-131, 2002, John Wiley & Sons Ltd.
Gauray Sharma and H. Joel Trussel, “Set Theroretic Estimation in Color Scanner Characterization”, Journal of Electronic Imaging, vol. 5(4), pp. 479-489, Oct. 1996.
Chang et al. “A Color Constancy Model for Advanced Television Cameras” IEEE transaction on Broadcasting vol. 38, pp. 90-97, Jun. 1992.
Ho et al. “Separating a Color Signal into Illumination and Surface Reflectance Components: Theory and Applications” IEEE transactions on Pattern Analysis and Machine Intelligence vol. 12, pp. 966-977, Oct. 1990.

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