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Apparatus and method for automatically computing gamma correction curve

  • US 20090010538A1
  • Filed: 06/25/2008
  • Published: 01/08/2009
  • Est. Priority Date: 06/26/2007
  • Status: Abandoned Application
First Claim
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1. Apparatus for automatically computing a gamma correction curve, comprising:

  • an image obtaining unit for receiving an input image data of a color chart through an image interface;

    a coordinate calculating unit for measuring input brightness values of a plurality of ROIs (Regions of Interest) in the input image and comparing an input brightness value of each ROI with a preset target brightness value of each ROI to calculate gamma correction coordinates for a plurality of points of a gamma correction curve; and

    a curve computing unit for applying interpolation to a plurality of the calculated gamma correction coordinates to compute a gamma correction curve.

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