Method and apparatus for RGB color conversion that can be...

Details Method and apparatus for RGB color conversion that can be... Method and apparatus for RGB color conversion that can be...

2006-11-07

2006-11-07

Alavi, Amir (Department: 2624)

Image analysis

Color image processing

Compression of color images

C345S604000

Reexamination Certificate

active

07133554

ABSTRACT:
Methods and apparatus are provided for performing reversible color conversion on digital image data using integer computer arithmetic. This color conversion provides an approximation of the luminance component to the luminance as perceived by the human visual system with any necessary precision (Kd) and without multiplication and division operations other than shifts. The color conversion can be used in conjunction with a lossless or lossy compression/decompression process. Other embodiments, including non-reversible and non-integer color conversion, are also provided.

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“Journal Issue Dispatch Dates” for journal “Signal Processing: Image”, http://www.elsevier.com/cgi-bin/inca/dispatch/dispatch.cgi?pubidt=505651, printed out on Mar. 19, 2002.

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