Color indentification circuit

Details Color indentification circuit Color indentification circuit

1980-04-30

1981-12-22

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 146

Patent

active

043074154

ABSTRACT:
A color identification circuit for use in identifying color samples received by a color raster scanner from a multicolor cartographic source chart includes a plurality of color limit comparators, one for each spectral parameter data channel of the sampled color element, each limit comparator including for each resident color on the source chart, the range of spectral values for the spectral parameter associated therewith, the range of values for each parameter representing the variations in the same color as obtained through color measurement samples taken from the source chart prior to actual data raster scanning; the output identification of a defined color spectral parameter from each limit comparator being presented to a color encoder, the color encoder identifying a unique color in dependence on the spectral parameter identification signals from each of the color limit comparators.

REFERENCES:
patent: 4037249 (1977-07-01), Pugsley

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