Image analysis – Color image processing – Color correction
Reexamination Certificate
2011-03-29
2011-03-29
Ge, Yuzhen (Department: 2624)
Image analysis
Color image processing
Color correction
Reexamination Certificate
active
07916941
ABSTRACT:
Methods and apparatuses for color image restoration and enhancement. In at least one embodiment, color signals for individual channels of an image (e.g., red, green, or blue) are adjusted based on a weighted set of averages (e.g., of the entire image, the center portion, the surrounding portion, or other portions). In one example, pixels with extreme values of color signals (e.g., pure black or white pixels) are ignored for the purposes of restoring color; and, the different averages are weighted according to the pixel location (e.g., the distance from the pixel to a center point). In one example, after color restoration for individual channels, the luminance of each pixel is adjusted back to their original levels; and the range of luminance of the image is further adjusted to provide improved brightness and contrast, where in determining the luminance the red, green and blue color channels are given an equal weight.
REFERENCES:
patent: 4381890 (1983-05-01), Wallace
patent: 4473289 (1984-09-01), Wallace
patent: 4605955 (1986-08-01), Hashimoto et al.
patent: 4811086 (1989-03-01), Hieda
patent: 4829383 (1989-05-01), Harase et al.
patent: 5016091 (1991-05-01), Choi
patent: 5016094 (1991-05-01), Kaneko
patent: 5045928 (1991-09-01), Takaiwa et al.
patent: 5070407 (1991-12-01), Wheeler et al.
patent: 5134466 (1992-07-01), Taek-hyun
patent: 5148288 (1992-09-01), Hannah
patent: 5153717 (1992-10-01), Nitta
patent: 5198890 (1993-03-01), Suga
patent: 5294989 (1994-03-01), Moore et al.
patent: 5434958 (1995-07-01), Surma et al.
patent: 5504525 (1996-04-01), Suzuki
patent: 5619260 (1997-04-01), Miyadera
patent: 5703644 (1997-12-01), Mori et al.
patent: 5760930 (1998-06-01), Fukuzawa et al.
patent: 5784180 (1998-07-01), Sakai et al.
patent: 5883973 (1999-03-01), Pascovici et al.
patent: 5926218 (1999-07-01), Smith
patent: 5973802 (1999-10-01), Hirota et al.
patent: 6038339 (2000-03-01), Hubel et al.
patent: 6141033 (2000-10-01), Michael et al.
patent: 6151410 (2000-11-01), Kuwata et al.
patent: 6346994 (2002-02-01), Inoue
patent: 6553135 (2003-04-01), Douglass et al.
patent: 6771272 (2004-08-01), Deering
patent: 6895112 (2005-05-01), Chen et al.
patent: 6917720 (2005-07-01), Caesar et al.
patent: 6952503 (2005-10-01), Matsuura
patent: 6985628 (2006-01-01), Fan
patent: 7006708 (2006-02-01), Nako et al.
patent: 7057768 (2006-06-01), Zaklika et al.
patent: 7068840 (2006-06-01), Risson
patent: 7184080 (2007-02-01), Kehtarnavaz et al.
patent: 7257251 (2007-08-01), Matthews
patent: 7259784 (2007-08-01), Cutler
patent: 7535511 (2009-05-01), Wu et al.
patent: 7576797 (2009-08-01), Kehtarnavaz et al.
patent: 2002/0005855 (2002-01-01), Mehigan
patent: 2002/0044215 (2002-04-01), Takagi et al.
patent: 2002/0130959 (2002-09-01), McGarvey
patent: 2002/0141638 (2002-10-01), Lee et al.
patent: 2002/0196335 (2002-12-01), Ozawa
patent: 2003/0156752 (2003-08-01), Turpin et al.
patent: 2003/0179926 (2003-09-01), Yamazoe et al.
patent: 2004/0125215 (2004-07-01), Wallace
patent: 1313004 (A) (2001-09-01), None
patent: 1107176 (2001-06-01), None
patent: 1289269 (2003-03-01), None
patent: 1292112 (2003-03-01), None
Luminance Models for Grayscale Conversions, Gernot Hoffman.
Centre for Systems Science, Simon Fraser University, “Colour Constancy Algorithms”, 10 pages, 1999.
Charles Rosenberg, “Image Color Constancy Using EM and Cached Statistics”,ICML00, Palo Alto, CA, 8 pages, 2000.
Kobus Barnard, “Modeling Scene Illumination Colour for Computer Vision and Image Reproduction: A survey of computational approaches”, Computing Science at Simon Fraser University, 39 pages, Dec. 1998.
Graham D. Finlayson, et al., “Comprehensive Colour Image Normalization”, 16 pages, Jun. 1998.
Ron Gershon, et al., “From [R, G, B] to Surface Reflectance: Computing Color Constant Descriptors in Images”, IJCAI, Milan, 7 pages, 1987.
PCT International Report on Patentability and Written Opinion for PCT/US2005/035074, mailed Apr. 12, 2007, 12 pgs.
PCT International Search Report and Written Opinion for PCT/US2005/035074, mailed Apr. 25, 2006, 19 pgs.
PCT Invitation to Pay Additional Fees for PCT/US2005/035074, mailed Feb. 13, 2006, 6 pgs.
Jan Esmann, “PR Studio-Black & White-1.0-Userguide”, Copyright 2003.
Centre for Systems Science, Simon Fraser University,“Colour Constancy Algorithms”, 10 pages, 1999.
Charles Rosenberg, “Image Color Constancy Using EM and Cached Statistics”, ICML00, Palo Alto, CA, 8 pages, 2000.
Ron Gershon, et al., “From [R,G,B] to Surface Reflectance: Computing Color Constant Descriptors in Images”, IJCAI, Milan, 7 pages, 1987.
Apple Inc.
Blakely , Sokoloff, Taylor & Zafman LLP
Ge Yuzhen
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