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Ambient light derived from video content by mapping transformations through unrendered color space

  • US 20090175536A1
  • Filed: 01/05/2005
  • Published: 07/09/2009
  • Est. Priority Date: 01/05/2004
  • Status: Active Grant
First Claim
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1. A method for extracting and processing video content encoded in a rendered color space (RGB) to be emulated by an ambient light source (88), comprising:

  • [1] Extracting color information from a video signal (AVS) that encodes at least some of said video content in said rendered color space;

    [2] Transforming said color information to an unrendered color space (XYZ);

    [3] Transforming said color information from said unrendered color space to a second rendered color space (R′

    G′

    B′

    ) so formed as to allow driving said ambient light source.

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