Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1994-01-04
1998-05-26
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358466, 358518, 358534, 348533, 382275, H04N 138
Patent
active
057575169
ABSTRACT:
An apparatus and method for suppressing noise and an input image having a plurality of pixels, each of the pixels in the plurality of pixels having a range of possible values between at least two extremities. A first group of pixels is determined, each pixel of the first group having a value that is less than a predetermined amount from the value of at least one of the extremities. The values of pixels adjacent to each pixel in the first group are examined to determine if the adjacent pixels are also members of the first group and, when a predetermined number of the pixels adjacent to a pixel in the first group are also members of the first group, reassigning the pixel value of that pixel in the first group and each of its adjacent pixels to have the value of at least one of the extremities.
REFERENCES:
patent: 3805239 (1974-04-01), Watanabe
patent: 4213155 (1980-07-01), Miienchow
patent: 4355337 (1982-10-01), Sekigawa
patent: 4408343 (1983-10-01), Neil et al.
patent: 4584605 (1986-04-01), Odozynski
patent: 4630307 (1986-12-01), Cok
patent: 4853795 (1989-08-01), Morton et al.
patent: 4894540 (1990-01-01), Komatsu
patent: 5001576 (1991-03-01), Tanaka et al.
patent: 5032904 (1991-07-01), Murai et al.
patent: 5051844 (1991-09-01), Sullivan
patent: 5081690 (1992-01-01), Tan
patent: 5159449 (1992-10-01), Allmendinger
patent: 5170441 (1992-12-01), Mimura et al.
patent: 5212739 (1993-05-01), Johnson
patent: 5254982 (1993-10-01), Feigenblatt
patent: 5257182 (1993-10-01), Luck et al.
patent: 5307426 (1994-04-01), Kanno et al.
patent: 5325211 (1994-06-01), Eschbach
patent: 5335019 (1994-08-01), Herz et al.
patent: 5337160 (1994-08-01), Jones
patent: 5337373 (1994-08-01), Marandici
patent: 5341228 (1994-08-01), Parker et al.
patent: 5375002 (1994-12-01), Kim et al.
patent: 5412737 (1995-05-01), Govrin
Canon Inc.
Coles Sr. Edward L.
Nguyen Madeleine A-V
LandOfFree
Noise quenching method and apparatus for a colour display system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Noise quenching method and apparatus for a colour display system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise quenching method and apparatus for a colour display system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1968995