Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1995-05-17
1997-04-08
Wu, Xiao
Computer graphics processing and selective visual display system
Display peripheral interface input device
345154, 345149, G09G 502
Patent
active
056192304
ABSTRACT:
A system and method for digital video imaging is provided. Complimentary dither patterns are applied to green and magenta components of the image. The complement nulls out the dither pattern from visual perception. The patterns are applied to permit rapid palette mapping with an improved palette, wherein the number of color states are non-integer powers of two. The dither matrix employed assumes pixels received as 8 bits per color with 7, 9, and 4 states of red, green, and blue, respectively. Green and magenta color components of the image switching out of phase with one another cancel dither frequency from luminance. Chrominance alternatively switches between green and magenta, thereby substituting chrominance noise for luminance noise and also thereby effectively reducing overall perceived image noise. In a preferred embodiment a system and method is provided for mapping a digitized image defined by at least a first and second color component, comprising selecting a dither pattern; selecting a complementary dither pattern; generating an altered first color component from the first color component and the dither pattern; and generating an altered second color component from the second color component and the complementary dither pattern.
REFERENCES:
patent: 4220972 (1980-09-01), Geokezas et al.
patent: 4561104 (1985-12-01), Martin
patent: 4680628 (1987-07-01), Wojcik et al.
patent: 4730212 (1988-03-01), Wojcik et al.
patent: 4758893 (1988-07-01), Lippel
patent: 4917097 (1990-04-01), Proudian
patent: 4956638 (1990-09-01), Larkey et al.
patent: 5138303 (1992-08-01), Rupel
patent: 5164717 (1992-11-01), Wells
patent: 5201030 (1993-04-01), Carrie
Carwell Robert M.
International Business Machines - Corporation
Wu Xiao
LandOfFree
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