Image analysis – Histogram processing – For setting a threshold
Patent
1992-02-27
1993-06-15
Mancuso, Joseph
Image analysis
Histogram processing
For setting a threshold
358448, 358457, 382 27, G06K 940
Patent
active
052206165
ABSTRACT:
A method of digitally processing images, in the form of a two dimensional data element array, in which the image is compressed by dividing the array into blocks (2) and performing transformation thereon. In order to smooth discontinuities at the boundaries (1, 13, 3, 14) between the blocks (2) resulting from the compression, filtering is performed by sequentially scanning elements at the boundaries with a one dimensional operator matrix (6, FIG. 1). The matrix applies suitable weights to those elements and adjacent ones to effect smoothing.
REFERENCES:
patent: 4754492 (1988-06-01), Malvar
patent: 4860373 (1989-08-01), Hartless et al.
patent: 4941043 (1990-07-01), Jass
patent: 5101445 (1992-03-01), Call et al.
patent: 5119445 (1992-06-01), Suzuki et al.
Nachrichten Technik Elektronik-vol. 38, No. 5, May 1988, Berlin DD pp. 166-169, L. Arnold et al. "Adaptiv Transformationscodierung von Grauwertbildern mit vermindertem Blocking Effect", Section 3.2 pp. 168-149, FIG. 10.
Downing Anthony H.
Fonseca Jeremy B. D.
Hadingham Robert G.
Whitaker John
Mancuso Joseph
Northern Telecom Limited
LandOfFree
Image processing 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 processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1048884