Methods and systems for example-based TV color calibration

Details Methods and systems for example-based TV color calibration Methods and systems for example-based TV color calibration

2006-04-04

2010-10-05

Hsia, Sherrie (Department: 2622)

Television

Monitoring, testing, or measuring

Testing of image reproducer

C348S180000

Reexamination Certificate

active

07808526

ABSTRACT:
An example-based method and system for electronic display color calibration is provided. By comparing the colors of commonly available objects with a color database under a controlled lighting condition, the user adjusts the gain and offset parameters of the Red, Green and Blue color components of the display. Two different methods are provided, wherein one method involves manipulating the comparison colors in the RGB color space, and the other method involves manipulating the comparison colors in the CIE x-y plane. Two different systems that incorporate the example-based color calibration methods are also provided, wherein one system directly implements the calibration method in the television system, while the other system implements the calibration method as a separate tool for viewers to calibrate the color of their displays.

REFERENCES:
patent: 5369432 (1994-11-01), Kennedy
patent: 5483259 (1996-01-01), Sachs
patent: 6525772 (2003-02-01), Johnson et al.
patent: 6850245 (2005-02-01), Murashita et al.
U.S. Appl. No. 11/128,761, filed May 12, 2005, N. Xu et al.
U.S. Appl. No. 11/378,870, filed Mar. 16, 2006, N. Xu et al.

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