Color conversion method using look up tables for compact...

Details Color conversion method using look up tables for compact... Color conversion method using look up tables for compact...

2005-05-17

2005-05-17

Evans, Arthur G. (Department: 2622)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S523000

Reexamination Certificate

active

06894810

ABSTRACT:
A color conversion method and apparatus for a compact printer system. An image processor converts a stored image from a first tri-color space to a second tri-color space. Resultant transformation values are read from lookup tables for each color component of the stored image pixels and a single cycle interpolator unit performs linear interpolation to generate a single color component in the second tri-color space in 14 cycles.In one example, the L*a*b* color space is converted to CMY color space. In another example, the RGB form is converted to the L*a*b* form and two extra L* components for use in sharpening a converted image.

REFERENCES:
patent: 4275413 (1981-06-01), Sakamoto et al.
patent: 5471324 (1995-11-01), Rolleston
patent: 5579031 (1996-11-01), Liang
patent: 5592312 (1997-01-01), Noguchi
patent: 5699491 (1997-12-01), Barzel
patent: 5729664 (1998-03-01), Ishikawa
patent: 5809181 (1998-09-01), Metcalfe
patent: WO 9904368 (1999-01-01), None

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