Correcting digital images using unique subjects

Image analysis – Color image processing – Color correction

Reexamination Certificate

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Details

C382S118000, C382S190000, C382S274000

Reexamination Certificate

active

07110597

ABSTRACT:
A method and apparatus for correcting digital images is provided. In one embodiment of the invention, a unique subject in a current image to be corrected is identified in one or more reference images. Pixel characteristics of the unique subject in the current image to be corrected are compared to the pixel characteristics of the unique subject as it appears in the one or more reference images. Using the comparison, a systemic error of the current image is inferred, and a correction function correcting the inferred error is determined. One embodiment of the invention corrects the color of a digital image based on identifying individual humans in the current image and in the reference images.

REFERENCES:
patent: 5296945 (1994-03-01), Nishikawa et al.
patent: 5719661 (1998-02-01), Terashita
patent: 6256062 (2001-07-01), Endo
patent: 6674898 (2004-01-01), Herman
patent: 6678407 (2004-01-01), Tajima
patent: 2002/0131652 (2002-09-01), Yoda
Margulis, D., “Professional Photoshop: The Classic Guide to Color Correction”, 2001,Chapter 2 entitled, “Color Correction by the Numbers”, pp. 21-40.

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