Digital image enhancement methods and apparatus

Details Digital image enhancement methods and apparatus Digital image enhancement methods and apparatus

1986-12-29

1989-03-28

Groody, James J.

Image analysis

Histogram processing

For setting a threshold

382 34, 382 61, G06K 940, G06K 920, G06K 968

Patent

active

048171794

ABSTRACT:
Digital matrices, for example digitized images, are enhanced by comparing a matrix to be enhanced with plural enhancement patterns for each position in the matrix of each element of the matrix to produce pattern codes commensurate with the matches with the enhancement patterns. The pattern codes are employed to generate plural enhancement decisions for each element of the matrix and these enhancement decisions are combined to provide a single enhancement action for each element of the matrix.

REFERENCES:
patent: 4290049 (1981-09-01), Sternberg et al.
patent: 4461029 (1984-07-01), Van Bilzem et al.
patent: 4468809 (1984-08-01), Grabowski et al.
patent: 4623923 (1986-11-01), Orbach
patent: 4628532 (1986-12-01), Stone et al.
patent: 4630308 (1986-12-01), Hongo

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