Apparatus and method for edge enhancement of digital image...

Details Apparatus and method for edge enhancement of digital image... Apparatus and method for edge enhancement of digital image...

2007-02-27

2007-02-27

Do, Anh Hong (Department: 2624)

Image analysis

Image enhancement or restoration

Edge or contour enhancement

C382S254000, C382S263000, C382S264000

Reexamination Certificate

active

10639923

ABSTRACT:
A method of edge-enhancing digital image data is provided, which includes: storing first and second image data; calculating difference between the first image data and the second image data; calculating a modification value by dividing the calculated difference value by a predetermined modification constant; comparing the difference with a predetermined value; and modifying the first and the second image data based on the modification value such that the first image data is decreased and the second image data is increased when the value of difference between the first and the second image data is lower than the predetermined value, and the first image data is increased and the second image data is decreased when the value of difference between the first and the second image data is higher than the predetermined value.

REFERENCES:
patent: 5835238 (1998-11-01), Mantell
patent: 6608700 (2003-08-01), Mantell

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