Image screening system

Details Image screening system Image screening system

1978-12-01

1980-04-01

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358284, 364515, 358298, H04N 140

Patent

active

041964535

ABSTRACT:
A system for screening image data provided in digital format. The image data is first electronically examined to determine whether or not the data is comprised of highlight, shadow, or midtone. Where the image data is determined to be midtone, the data is processed using a high frequency electronic screen. Where the image data is determined to be highlight or shadow, the data is processed using a low frequency electronic screen.

REFERENCES:
patent: 4004079 (1977-01-01), Boston
patent: 4051536 (1977-09-01), Roetling
patent: 4084259 (1978-04-01), Cahill et al.
patent: 4109211 (1978-08-01), Mese et al.

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