Image analysis – Color image processing
Patent
1996-06-05
1998-10-13
Tran, Phuoc
Image analysis
Color image processing
382270, 358535, 358457, G06K 900
Patent
active
058224513
ABSTRACT:
A method for halftoning a multi-channel digital color image having an x,y array of color pixel values, includes the steps of: providing a matrix of dither values for each color channel of the digital color image wherein two or more of the matrices of dither values are designed jointly to minimize a visual cost function; for each color channel modularly addressing the matrix of dither values with the location of a pixel in the digital color image to obtain an addressed dither value; comparing the addressed dither value for each color channel with the pixel value for the corresponding color channel to determine an output halftone image value for each color channel; and repeating steps b and c for each pixel in the digital image.
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patent: 5111310 (1992-05-01), Parker et al.
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David E. Goldberg, "Genetic Algorithms in Search, Optimization, and Machine Learning", Addison Wesley Publishing Company, Inc., pp. 1-23.
Miller Rodney L.
Schildkraut Jay S.
Spaulding Kevin Edward
Close Thomas H.
Eastman Kodak Company
Tran Phuoc
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