Image processing apparatus, image forming apparatus, image...

Details Image processing apparatus, image forming apparatus, image... Image processing apparatus, image forming apparatus, image...

2006-06-27

2010-06-01

Popovici, Dov (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003240, C358S520000, C358S522000

Reexamination Certificate

active

07729009

ABSTRACT:
An is an image processing apparatus including: an image memory section to store an image data obtained by reading an image of an original manuscript; an external light memory section to store a data of external light entering to a stage for the original manuscript and to form histograms of each color based on the data of external light; a judging section to calculate an external light level from a higher luminance by each color out of luminance values of a foot of a peak including a maximum frequency value measured on the histograms; and an area detecting section to determine a non-image area erase threshold based on the external light level, so as to detect an image area and to erase a non-image area.

REFERENCES:
patent: 2003/0038984 (2003-02-01), Ohkawa
patent: 2004/0197021 (2004-10-01), Huang et al.
patent: 2002-084409 (2002-03-01), None

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