Method for reducing noise in image signals and apparatus therefo

Details Method for reducing noise in image signals and apparatus therefo Method for reducing noise in image signals and apparatus therefo

1997-06-18

1998-07-21

Couso, Yon

Image analysis

Image enhancement or restoration

Image filter

382262, G06K 940

Patent

active

057844992

ABSTRACT:
In an image data including tone information, a level of an attentional picture element in an image and a level of an adjacent picture element located adjacent to the attentional picture element are smoothed to create a first substitution level, and by internally dividing the level of the attentional picture element and the first substitution level with a predetermined internal division ratio to obtain a second substitution level which finally substitutes the level of the attentional picture element.

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patent: 5506699 (1996-04-01), Wong

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