Method of determining ink coverage in a print image

Details Method of determining ink coverage in a print image Method of determining ink coverage in a print image

1998-11-03

1999-10-19

Fisher, J. Reed

Printing

Multicolor

Processes

101484, G01J 346, B41F 3100

Patent

active

059670339

ABSTRACT:
For determining the ink coverages of printing inks involved in printing in one pixel of a print image, the pixel is scanned photoelectrically in the visible range of the spectrum and also in the near infrared range. Color coordinates of a perceptually approximately equidistant color system and at least one infrared value are formed from the scanned signals thus obtained. The ink coverages of the printing inks involved in the printing are then calculated from these color coordinates and from the minimum of one infrared value and are allocated to the pixel.

REFERENCES:
patent: 5182721 (1993-01-01), Kipphan et al.
patent: 5530656 (1996-06-01), Six
patent: 5791251 (1998-08-01), Kislter et al.

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