Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Patent
1996-06-20
2000-06-06
Vu, Kim Yen
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
358442, 358461, 358521, H04N 140
Patent
active
060729120
ABSTRACT:
An image scanner produces white level data when the white plate is irradiated with light. The image scanner produces black level data when the white plate is irradiated with no light. Correction data constructed from the thus produced white level data and black level data is transferred to the host computer. Next, the image scanner produces tone data for the original, and transfers the tone data to the host computer. In the host computer, the tone data is corrected into either one of the 256 levels "00" to "FF." This correction operation is attained with using average values of the transferred white level data and average values of the transferred black level data.
REFERENCES:
patent: 5038225 (1991-08-01), Maeshima
patent: 5115478 (1992-05-01), Sugiura
patent: 5202773 (1993-04-01), Kato
patent: 5383032 (1995-01-01), Eguchi et al.
patent: 5430559 (1995-07-01), Hirota
patent: 5453845 (1995-09-01), Nonoshita et al.
patent: 5532849 (1996-07-01), McIntyre et al.
patent: 5568284 (1996-10-01), Oku et al.
patent: 5592218 (1997-01-01), Ochiai et al.
patent: 5719965 (1998-02-01), Degi et al.
patent: 5917619 (1999-06-01), Yamagata et al.
Brother Kogyo Kabushiki Kaisha
Vu Kim Yen
LandOfFree
Image reading-and-transferring system utilizing computer correct 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-and-transferring system utilizing computer correct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image reading-and-transferring system utilizing computer correct will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2221294