Image reading apparatus with improved shading correction

Details Image reading apparatus with improved shading correction Image reading apparatus with improved shading correction

1990-06-28

1992-03-24

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H01J 4014

Patent

active

050993410

ABSTRACT:
An image reading apparatus including a reading unit for reading image information upon movement and scanning, and an image forming unit for forming an image according to the image information from the reading unit, performs shading correction by utilizing a first white reference plate arranged along a direction perpendicular to the moving direction of the reading unit, and a second white reference plate arranged along the moving direction of the reading unit.

REFERENCES:
patent: 4806780 (1989-02-01), Yamamoto et al.
patent: 4903144 (1990-02-01), Stefanik et al.
patent: 4984285 (1991-01-01), Kano et al.

Affiliated with

Also associated with

Rating

Image reading apparatus with improved shading correction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image reading apparatus with improved shading correction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image reading apparatus with improved shading correction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2014716