Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1995-07-14
1996-02-20
Rogers, Scott A.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358456, 358466, H04N 140, H04N 1405
Patent
active
054934192
ABSTRACT:
The present invention is a method and apparatus for the enhancement of 1 bit per pixel image signals to produce a multiple-bit per pixel form. A binary input image is passed through a plurality of filters to generate level slices. The filters are stack filters implemented as look-up table or template-based filters, morphological filters, or any similar binary-to-binary filters that could be used to generate level slices. Each of the N-1 filters is used to produce the slices, where N is the number of possible gray-scale levels desired in the output image. Once the slices are generated, the resulting binary image data therein is recombined, by adding or stacking, to produce the desired multiple-bit per pixel output.
REFERENCES:
patent: 4926268 (1990-05-01), Kawamura
patent: 5134668 (1992-07-01), Appel
patent: 5339170 (1994-08-01), Fan
Jodoin Ronald E.
Klassen R. Victor
Lin Ying-wei
Loce Robert P.
Basch Duane C.
Rogers Scott A.
Xerox Corporation
LandOfFree
Stack filters for 1-to-N bit image processing in electronic prin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stack filters for 1-to-N bit image processing in electronic prin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stack filters for 1-to-N bit image processing in electronic prin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1360341