Image processing apparatus and image processing method

Image analysis – Image enhancement or restoration – Edge or contour enhancement

Reexamination Certificate

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Details

C382S181000

Reexamination Certificate

active

07359568

ABSTRACT:
Converting inputted information of an image into information suitable for the edge detection, and calculating difference value difference value of adjacent pixels of the image, and adding an absolute value of the difference value to the calculated difference value of the pixels corresponding to the adjacent pixels if the difference value is negative, to generate an edge image.

REFERENCES:
patent: 5390264 (1995-02-01), Ishihara et al.
patent: 6041145 (2000-03-01), Hayashi et al.
patent: 6788825 (2004-09-01), Fujino
patent: 8999632 (2006-02-01), Yamaguchi
patent: 11-308438 (1999-11-01), None
patent: 2001-101399 (2001-04-01), None
patent: 2001-175808 (2001-06-01), None
patent: 2002-262096 (2002-09-01), None

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