Method and apparatus for the production of color separations for

Details Method and apparatus for the production of color separations for Method and apparatus for the production of color separations for

1984-12-12

1986-12-23

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, G03F 308, H04N 146

Patent

active

046315799

ABSTRACT:
In electronic reproduction technology, a method and an apparatus for the production of hue and color separations for single color printing. A color original is optoelectronically scanned to obtain measured color value signals. A recognition region for a selected separation hue is defined in a recognition circuit. A hue recognition signal, which is a measure for the hue deviations of the hues scanned in the color original from the selected separation hue, is generated from the measured color value signals. Corrected color signals are derived from the measured color value signals and at least one corrected color signal is selected for further processing. A recording signal is acquired in a mixer stage by mixing the selected color signal and the hue recognition signal. The recording signal controls a recording element for recording of the hue separation. When color separations are to be produced, a recognition region for a selected separation color is defined and a color recognition signal is generated and mixed with the selected color signal to obtain the recording signal which controls the recording of the color separation.

REFERENCES:
patent: 4110826 (1978-08-01), Mollgaard et al.
patent: 4194839 (1980-03-01), Knop
patent: 4261011 (1981-04-01), Knop
patent: 4403249 (1983-09-01), Knop et al.

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