Reproduction of halftone original with moire reduction and tone

Details Reproduction of halftone original with moire reduction and tone Reproduction of halftone original with moire reduction and tone

1988-09-06

1990-07-17

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358454, 358456, H04N 140

Patent

active

049424807

ABSTRACT:
Reproduction of an original containing screened artwork is accomplished by selecting the scanning frequency to have a predetermined relationship to the screen frequency of the artwork and by utilizing adaptive thresholding methodology to convert the scanned digital signals to processed binary signals which are such as to result in the average gray levels over corresponding arrays of binary signals and digital signals being approximately equal.

REFERENCES:
patent: 4051536 (1977-09-01), Roetling
patent: 4080634 (1978-03-01), Schreiber
patent: 4194221 (1980-03-01), Stoffel
patent: 4196452 (1980-04-01), Warren et al.
patent: 4196453 (1980-04-01), Warren
patent: 4210936 (1980-07-01), Cinque et al.
patent: 4246614 (1981-01-01), Knox
patent: 4308326 (1981-12-01), Wirth
patent: 4350996 (1982-09-01), Rosenfeld
patent: 4413286 (1983-11-01), Boston
patent: 4447830 (1984-05-01), Stoffel
patent: 4486788 (1984-12-01), Yamada
patent: 4498108 (1985-02-01), Lindemann et al.
patent: 4524388 (1985-06-01), Abe et al.
patent: 4538184 (1985-08-01), Otsuka et al.
patent: 4556918 (1985-12-01), Yamazaki et al.
patent: 4651287 (1987-03-01), Tsao
patent: 4730221 (1988-03-01), Roetling

Affiliated with

Also associated with

Rating

Reproduction of halftone original with moire reduction and tone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reproduction of halftone original with moire reduction and tone , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reproduction of halftone original with moire reduction and tone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-98359