Method for producing printing forms with irregularly distributed

Details Method for producing printing forms with irregularly distributed Method for producing printing forms with irregularly distributed

1982-08-30

1984-11-27

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358298, H04N 140

Patent

active

044853971

ABSTRACT:
A method for producing printing forms by way of irregularly-distributed printing points provides that an image original be opto-electrically scanned across individual surface elements with a desired detail resolution. A gray scale corresponding to the scanning signal is assigned to each surface element and surface elements of the same or approximately the same gradation are combined into sub-surfaces and the individual sub-surfaces are reproduced in accordance with their gradation value by way of a plurality of statistically-distributed printing points whose overall surface coverage within the sub-surface corresponds to the gradation of the sub-surface, whereby the combination of the sub-surfaces is undertaken in accordance with the actual boundaries of the same or approximately the same gradation within the original image.

REFERENCES:
patent: 3725574 (1973-04-01), Gast
patent: 4339774 (1982-07-01), Temple
patent: 4342051 (1982-07-01), Suzuki et al.
Chromacom-The Electronic Non-Film Page Make-Up and Retouching System, Dr. Ing. Rudolf Hell GmbH, Kiel, Germany.

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