Image reading apparatus

Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction

Reexamination Certificate

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Details

C358S003270

Reexamination Certificate

active

07826679

ABSTRACT:
An image reading apparatus includes an image reader, operable to read an image corresponding to an original and a back pad, the original being placed on the back pad so that outside of the original contains an area extending in overall width of the back pad; a first data generator, operable to generate first image data based on the image; a second data generator, operable to generate second image data based on a part of the image corresponding to the area; a first processor, operable to compare the first image data with the second image data so as to generate first edge information; and a detector, operable to detect an edge of the original based on the first edge information.

REFERENCES:
patent: 5568573 (1996-10-01), Wada et al.
patent: 5748344 (1998-05-01), Rees
patent: 5818062 (1998-10-01), Baba et al.
patent: 6930804 (2005-08-01), Farrell
patent: 7215446 (2007-05-01), Ohkawa
patent: 10-145556 (1998-05-01), None
patent: 10-341332 (1998-12-01), None
patent: 2002-300367 (2002-10-01), None
Japanese Office Action issued on Feb. 16, 2010 in the corresponding Japanese Patent Application No. 2005-273033.

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