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Creating details in an image with frequency lifting

  • US 9,305,332 B2
  • Filed: 03/14/2014
  • Issued: 04/05/2016
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving input image information;

    determining, by a processor device, enhancement information based on;

    transforming the received input image information to obtain frequency domain information;

    performing an inverse transformation on an updated frequency distribution to create one or more output image blocks; and

    combining the one or more output image blocks to create the enhancement information; and

    mixing the enhancement information with the input image information to generate an enhanced image.

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