Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1995-08-03
1998-03-17
Bost, Dwayne
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358518, 358523, 358501, G06K 1500
Patent
active
057296642
ABSTRACT:
During a first period of a conversion clock signal DL, a 3-dimensional DLUT color convertor 10 converts an RGB input color image signal of one pixel that is outputted from a input register 42, into an output color image data of yellow on the basis of conversion data from a conversion table 20. During the next period, the 3-dimensional DLUT color convertor 10 converts the RGB color image signal of one pixel into an output color image data of magenta on the basis of another conversion data. The 3-dimensional DLUT color convertor 10 likewise converts the RGB color image signal into output color image data of cyan and black in a time divisional manner. Accordingly, it is possible to convert an input color image signal of a color space into an output color image signal of another color space in real time, by one color converting means.
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T. Fumoto et al, "A High-Speed Color Processor by 3-D LUT and SLANT-PRISM Interpolation", The 24th Image Engineering Conference Papers, pp. 347-350 (1993).
Bost Dwayne
Fuji 'Xerox Co., Ltd.
Legree Tracy M.
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