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Method of, and apparatus for image enhancement taking ambient illuminance into account

  • US 20060187242A1
  • Filed: 02/15/2006
  • Published: 08/24/2006
  • Est. Priority Date: 02/18/2005
  • Status: Active Grant
First Claim
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1. An image enhancement method, comprising:

  • calculating an original-luminance contrast which is a luminance contrast with respect to an original-luminance of pixels forming an original image;

    calculating a fade-luminance by reflecting a variation of perceived luminance based on an ambient illuminance into the original-luminance;

    calculating a defade-luminance by converting the fade-luminance to maintain the original-luminance contrast; and

    calculating a display-luminance by reflecting the variation of luminance as perceived by the ambient illuminance into the defade-luminance.

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