Colour conversion method

Details Colour conversion method Colour conversion method

2007-12-11

2007-12-11

Nguyen, Madeleine A V (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S523000, C358S525000

Reexamination Certificate

active

10943907

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.

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