Optics: measuring and testing – By shade or color
Patent
1979-12-10
1982-09-14
Evans, F. L.
Optics: measuring and testing
By shade or color
250226, 358 80, 364526, 356405, 356406, G01J 350
Patent
active
043492797
ABSTRACT:
A method for the color evaluation of pattern models of fabric, decoration or packaging printing which, in particular, exhibit bleeding color areas, i.e. color areas of differing color saturation and/or brightness, and a color evaluation device with a color monitor is provided for carrying out the method. Color recognition signals characteristic for the individual pattern colors and a run signal, dependent on the respective color saturation, are derived from the color measured value signals obtained through opto-electric scanning of the pattern models. A freely-selectable color signal triad corresponding to the color to be displayed on the color monitor is assigned in a coloration unit to each pattern color and a further color signal triad is prescribed for the background color of the later printing medium. For displaying the pattern models on the color monitor, the color recognition signals in the coloration unit call in the color signal triads. The control signals for the color monitor are determined from the color signal triads called in, from the color signal triad of the background color and from the run signal.
REFERENCES:
patent: 3942154 (1976-03-01), Akami et al.
Dr. -Ing. Rudolf Hell GmbH
Evans F. L.
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