Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2007-07-16
2011-11-15
Hung, Yubin (Department: 2624)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
C382S167000, C345S617000, C358S522000
Reexamination Certificate
active
08059913
ABSTRACT:
Provided is an image correction method and apparatus which can enhance the performance of image correction without deteriorating image quality. The image correction method includes creating a cumulative density function (CDF) based on a luminance histogram of an input image; calculating a plurality of correction parameters, which will be respectively applied to a plurality of different luminance adjustment functions, based on the CDF of the input image; and correcting luminance of the input image using the correction parameters and the luminance adjustment functions.
REFERENCES:
patent: 7574042 (2009-08-01), Tsuruoka et al.
patent: 2003/0174886 (2003-09-01), Iguchi et al.
patent: 2004/0131273 (2004-07-01), Johnson et al.
patent: 2005/0013503 (2005-01-01), Park et al.
patent: 2005/0031201 (2005-02-01), Goh
patent: 2005/0207642 (2005-09-01), Yano
patent: 2006/0153446 (2006-07-01), Oh et al.
patent: 1067347 (1992-12-01), None
patent: 1162799 (1997-10-01), None
patent: 11-283011 (1999-10-01), None
patent: 2001-34748 (2001-02-01), None
patent: 10-0437807 (2004-06-01), None
patent: 10-2004-0073722 (2004-08-01), None
patent: 10-2004-0080456 (2004-09-01), None
Stark (“Adaptive Image Contrast Enhancement Using Generalizations of Histogram Equalization,” IEEE Transactions on Image Processing, vol. 9, No. 5, May 2000, pp. 889-896).
Chinese Office Action mailed on Jul. 30, 2010 in corresponding Chinese Patent Application No. 200710149126.5.
English translation of Korean Patent Office Action, mailed Sep. 19, 2007 and issued in corresponding Korean Patent Application No. 10-2006-0085288.
Kwon Jae-hyun
Lee Seong-deok
Ok Hyun-wook
Hung Yubin
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
LandOfFree
Image correction method and apparatus 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 correction method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image correction method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4267162