Apparatus for color conversion and method thereof

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United States of America Patent

PATENT NO 7236181
SERIAL NO

10604599

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Abstract

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A color conversion apparatus and a method of color conversion are described for converting a first color in a first color space to a second color in a second color space. The color conversion apparatus includes a plurality of lookup tables storing color mappings relating the first color space to the second color space and a converter using the lookup tables to convert the first color to the second color. The first color space is the sRGB color space and the second color space is a device dependent color space, or vice versa. To reduce the table size, tables having little effect on the second color contain groups of input colors mapping to a same output color and are implemented with a memory having the address inputs connected to the upper most significant bits of an incoming color value. A gamma correction circuit is used to calculate the remaining tables.

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Patent Owner(s)

Patent OwnerAddress
REALTEK SEMICONDUCTOR CORP2 INNOVATION RD II SCIENCE PARK HSINCHU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Issac Kao-Hsiung, TW 5 26
Gong, Jin-Sheng Tao-Yuan Hsien, TW 24 49
Ho, Hung-Hui Kao-Hsiung, TW 2 8

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