Color image processing apparatus and method for color...

Image analysis – Color image processing

Reexamination Certificate

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C382S254000, C358S003270, C358S447000

Reexamination Certificate

active

06904165

ABSTRACT:
An apparatus and method for pixel color enhancement are provided. The preferred embodiment includes a first circuitry, a second circuitry, a third circuitry, a fourth circuitry. In a preferred embodiment, the apparatus further includes a fifth circuitry. The first circuitry determines and outputs a reference value X. The second circuitry inputs the X, and (R, G, B) and subtracts X from three components (R, G, B) respectively to obtain values of (R−X), (G−X) and (B−X). The third circuitry inputs values of (R−X), (G−X) and (B−X) and scale values of (R−X), (G−X) and (B−X) by a factor S to generate values of S*(R−X), S*(G−X) and S*(B−X). The fourth circuitry16respectively adds values of S*(R−X), S*(G−X) and S*(B−X) to three components (R, G, B) to generate three enhanced components (R′, G′, B′).

REFERENCES:
patent: 5016173 (1991-05-01), Kenet et al.
patent: 5241468 (1993-08-01), Kenet
patent: 5548697 (1996-08-01), Zortea
patent: 5883984 (1999-03-01), Huang et al.
patent: 5905504 (1999-05-01), Barkans et al.
patent: 2001054132 (2001-02-01), None
Machine translation of JP 2001054132 A cited above.

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