Image enhancement

Details Image enhancement Image enhancement

1984-11-07

1987-09-01

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358166, 358167, 364572, 364724, 364825, 382 22, 382 50, G06K 940

Patent

active

046913661

ABSTRACT:
Image enhancement accomplished by filtering using filters optimally adjusted to system parameters to enhance long edges, attenuate noise and "points" so that the long-edge data normally buried in noise is available and to further enable using low-frequency data.

REFERENCES:
patent: 4142211 (1979-02-01), Faroudja
patent: 4352126 (1982-09-01), Poncin et al.
patent: 4463381 (1984-07-01), Powell et al.
patent: 4561022 (1985-12-01), Bayer
patent: 4618990 (1986-10-01), Sieb, Jr. et al.
Rossi, John P., SMPTE Journal, "Digital Techniques for Reducing Television Noise", Mar. 1978, vol. 87, pp. 134-140.

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