Method for squeezing an input hue toward a region of...

Details Method for squeezing an input hue toward a region of... Method for squeezing an input hue toward a region of...

2007-03-13

2007-03-13

Couso, Yon J. (Department: 2624)

Image analysis

Color image processing

Color correction

C358S520000, C348S649000

Reexamination Certificate

active

10642795

ABSTRACT:
A method is disclosed for squeezing an input hue, Hin, toward a region of preferred hue, Hpref, having a preferred chroma, Cpref, and luminance, Lpref, to restrict the rotation effect to a point in LCH space rather than an entire hue slice. This method involves defining a chroma weight as: Cweight=Gaussian(Cpref,Csigma); defining a luminance weight as: Lweight=Gaussian(Lpref,Lsigma); defining a hue weight as: Hweight=Gaussian(Hpref,Hsigma); defining an amount of hue adjustment as: HAdjust=ΔH*(Hweight*Cweight*Lweight); and finally, generating an output hue by applying hue adjustment to hue input such that: Hout=Hin−HAdjust.

REFERENCES:
patent: 5930009 (1999-07-01), Sato et al.
patent: 6058207 (2000-05-01), Tuijn et al.
patent: 6438264 (2002-08-01), Gallagher et al.
patent: 6731796 (2004-05-01), Maltz et al.
patent: 6947078 (2005-09-01), Kuwata et al.
patent: 7072072 (2006-07-01), Balasubramanian et al.
patent: 2002/0191084 (2002-12-01), Kurokawa
patent: 2004/0151370 (2004-08-01), Sasaki
patent: 2005/0041155 (2005-02-01), Braun
patent: 2005/0041853 (2005-02-01), Braun
Article by Karin Töpfer and Robert Cookingham of the Eastmak Kodak Company in Rochester, NY, entitled: “The Quantitative Aspects of Color Rendering For Emmory Colors” from the IS&T's 2000 PICS Conference.

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