Image processing device

Details Image processing device Image processing device

1994-05-20

1997-10-07

Mancuso, Joseph

Image analysis

Pattern recognition

Feature extraction

G06K 948

Patent

active

056756640

ABSTRACT:
This invention provides an image processing device which is capable of discriminating an edge even on a faint image by changing the edge discriminating parameters according to the gray-level values set in its control portion. An edge discriminating circuit discriminates an edge on an image and a gray-level converting portion then conducts gray-level conversion of the image and determines changeable set values of gray-levels. After this an edge discriminating circuit conducts the discrimination of an edge of the image. In this case the set values of gray-levels are given to the edge discriminating circuit to enable the latter to easily discriminate the edge portion having a low variation when the image has lowered gray-levels.

REFERENCES:
patent: 4868684 (1989-09-01), Suzuki
patent: 4903316 (1990-02-01), Hongo et al.
patent: 4908872 (1990-03-01), Toriu et al.
patent: 5177795 (1993-01-01), Tanioka et al.

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