Apparatus and method for contrast enhancement

Details Apparatus and method for contrast enhancement Apparatus and method for contrast enhancement

2008-04-02

2011-12-27

Couso, Yon (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

Reexamination Certificate

active

08086065

ABSTRACT:
Apparatus and method for contrast enhancement are disclosed. An adjustable blending unit is utilized for adjustably blending a linear contrast function with a nonlinear contrast function, thereby resulting in an adjustable contrast curve. The nonlinear contrast function is adjustable by a blending parameter such that distance of the contrast curve to linear contrast curve may be changed.

REFERENCES:
patent: 7652808 (2010-01-01), Bala
patent: 2002/0031277 (2002-03-01), Lubin et al.
patent: 2003/0161548 (2003-08-01), Vuylsteke

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