Method for halftone reproduction of continuous tone images

Details Method for halftone reproduction of continuous tone images Method for halftone reproduction of continuous tone images

1976-03-15

1978-03-28

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358298, 346108, H04N 146, H04N 122, G01D 942

Patent

active

040818284

ABSTRACT:
A method for halftone reproduction of continuous tone images, in black and white or color, wherein improved tonal density characteristics are achieved, is disclosed. By plotting a first set of dot fields upon a recording medium, such as photographic film, and then plotting successive sets of dot fields upon the same reocording medium with some dots of the successive sets being superimposed upon some of the dots of the first set, an increased number of different tonal densities is made possible.

REFERENCES:
patent: 2177247 (1939-10-01), Finch
patent: 3275741 (1966-09-01), Hughes et al.
patent: 3617623 (1971-11-01), Ross
patent: 3657472 (1972-04-01), Taudt et al.
patent: 3742129 (1973-06-01), Roberts et al.

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