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Method and apparatus for detecting and processing noisy edges in image detail enhancement

  • US 20050058365A1
  • Filed: 09/11/2003
  • Published: 03/17/2005
  • Est. Priority Date: 09/11/2003
  • Status: Active Grant
First Claim
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1. A method of detail enhancement for an original image signal represented by a set of pixels, the method comprising the steps of:

  • (a) detecting image pixels that belong to an image edge;

    (b) for a detected pixel, generating an unsharp image signal at the detected pixel location;

    (c) determining the difference between the original image signal and the unsharp signal, wherein said difference represents image details; and

    (d) boosting the difference signal and adding the boosted signal to the original signal to obtain a detail enhanced image signal;

    whereby boosting of any noise at the selected pixel location is reduced.

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