Color processing method and apparatus

Details Color processing method and apparatus Color processing method and apparatus

2011-05-17

2011-05-17

Tieu, Benny Q (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Interpolation

C358S001900

Reexamination Certificate

active

07944595

ABSTRACT:
The dark part of the gamut includes switching regions from light color materials to dark color materials, thus preferable results of colors of these regions cannot be obtained by color prediction based on interpolation. Hence, patches of grid points for dividing an input color space are printed on a medium, and the colorimetry results of the patches are obtained. Patches of some of the grid points and an additional point between these grid points are printed on a medium of the same type as the medium, and the colorimetry results of the patches are obtained. The colorimetric value of the additional point is interpolated based on those of grid points around the additional point in the first colorimetry using, as weights, the distances on the color space between the colorimetric value of the additional point and those of the grid points around the additional point in the second colorimetry.

REFERENCES:
patent: 6494557 (2002-12-01), Kato et al.
patent: 2002/0181018 (2002-12-01), Hung
patent: 2006/0061785 (2006-03-01), Nagoshi et al.
patent: 11-112822 (1999-04-01), None

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