Method and apparatus for representing an image

Details Method and apparatus for representing an image Method and apparatus for representing an image

1990-02-09

1991-11-26

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358426, 358432, 36472406, 36472408, G06K 940

Patent

active

050689118

ABSTRACT:
An improved image compression system is disclosed in which the image is first repetitively filtered in one direction to produce a series of sub-images. These sub-images are then repetitively filtered in a second image to produce an image representation having a plurality of sub-images in which each sub-image has a different frequency content.

REFERENCES:
patent: 4394774 (1983-07-01), Widergren et al.
patent: 4817182 (1989-03-01), Adelson et al.
patent: 4829378 (1989-05-01), LeGall

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