Image data processing device and method of processing image data

Details Image data processing device and method of processing image data Image data processing device and method of processing image data

1996-10-31

1999-11-09

Lee, Thomas D.

Image analysis

Image enhancement or restoration

Image filter

382267, 382269, G06K 940

Patent

active

059829400

ABSTRACT:
A plurality of regions are set for input image data formed of a plurality of pixels. A characteristic parameter for each region is extracted in accordance with a state of distribution in each region. Vectors representing relationships between the regions are calculated based on the extracted characteristic parameters. A filter is produced in accordance with the calculated vector. Using the filter, the image data is filtered. In this manner, jaggies, discontinuities and satellite dots appearing at characters and lines of the image are removed and corrected.

REFERENCES:
patent: 4541116 (1985-09-01), Lougheed
patent: 5317420 (1994-05-01), Kuwahara
patent: 5333211 (1994-07-01), Kanda et al.

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