Image scanner

Details Image scanner Image scanner

1991-12-11

1994-07-12

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358463, 358447, 358465, 358448, 358445, 382 51, H04N 138

Patent

active

053293827

ABSTRACT:
A document image scanner that converts scanned images for output as bilevel images is provided with a bilevel image filter. The bilevel image filter counts the number of continuous pattern elements in each direction, vertical, horizontal and diagonal, from a specific point and compares the results with a predetermined reference. Patterns falling below the reference value are regarded as resulting from background noise and are erased.

REFERENCES:
patent: 4903316 (1990-02-01), Hongo et al.
patent: 4919736 (1990-12-01), Weiman et al.
patent: 4931881 (1990-06-01), Matsui et al.
patent: 4975768 (1990-12-01), Takayaga
patent: 5048096 (1991-09-01), Beato
patent: 5055944 (1991-10-01), Shibahara
patent: 5081691 (1992-01-01), Chesley
patent: 5119211 (1992-06-01), Sakurai
patent: 5138674 (1992-08-01), Sugawa
patent: 5144566 (1992-09-01), Anderson et al.
patent: 5157740 (1992-10-01), Klein et al.
patent: 5166810 (1992-11-01), Sorimachi et al.
patent: 5166986 (1992-11-01), Mizuoka et al.

Affiliated with

Also associated with

Rating

Image scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image scanner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-400878