Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2011-01-18
2011-01-18
Patel, Kanji (Department: 2624)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
C358S505000
Reexamination Certificate
active
07873232
ABSTRACT:
Printing systems and methods are presented for image background and neutral adjustment of luminance-chrominance pixel values corresponding to a scanned image, in which white and black pixels are identified which have luminance values close to whitepoint and blackpoint values for the image, and which have chrominance values close to the chrominance neutral point. The chrominance values of these identified white and black pixels are selectively reduced based at least partially on proximity to the chrominance neutral point and chrominance of one or more neighboring pixels.
REFERENCES:
patent: 5450502 (1995-09-01), Eschbach et al.
patent: 6198845 (2001-03-01), Tse et al.
patent: 6275304 (2001-08-01), Eschbach et al.
patent: 6674899 (2004-01-01), Nagarajan et al.
patent: 6944353 (2005-09-01), Matsuda
patent: 6995866 (2006-02-01), Feng et al.
patent: 7058222 (2006-06-01), Li et al.
patent: 7085413 (2006-08-01), Huang et al.
patent: 7116826 (2006-10-01), Umeda et al.
patent: 7177053 (2007-02-01), Smith et al.
patent: 7200263 (2007-04-01), Curry et al.
patent: 7236641 (2007-06-01), Curry et al.
patent: 7551334 (2009-06-01), Li
patent: 2004/0052429 (2004-03-01), Curry et al.
patent: 2004/0071362 (2004-04-01), Curry et al.
patent: 2007/0019257 (2007-01-01), Li
Fay Sharpe LLP
Patel Kanji
Xerox Corporation
LandOfFree
Method and system for image background suppression using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for image background suppression using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for image background suppression using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2723270