Operator adjustable color image processing

Details Operator adjustable color image processing Operator adjustable color image processing

1989-04-03

1990-11-20

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, G03F 308

Patent

active

049722573

ABSTRACT:
An operator controllable apparatus which adjusts the color of a copy being reproduced from a multi-colored original document. The original document is scanned and a set of primary color densities therein measured. The measured set of primary color densities is changed to a set of colorimetric coordinates. The operator adjusts the set of colorimetric coordinates so that the copy has the desired hue, saturation and darkness. The operator adjusted set of colorimetric coordinates is transformed into a set of subtractive primary color densities. This set of subtractive primary color densities controls the marking engine to form a copy having the desired hue, saturation and darkness.

REFERENCES:
patent: 4643563 (1987-02-01), Sayanagi
patent: 4668980 (1987-05-01), Stansfield et al.
patent: 4769696 (1988-09-01), Lltsuda et al.
patent: 4789892 (1988-12-01), Tsuzuki et al.
patent: 4792847 (1988-12-01), Shimazaki et al.
patent: 4839721 (1989-06-01), Abdulwahab et al.
patent: 4839722 (1989-06-01), Barry et al.
patent: 4882622 (1989-11-01), Mzuda et al.

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