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REDUCING NOISE IN DIGITAL IMAGES

  • US 20110019888A1
  • Filed: 10/06/2010
  • Published: 01/27/2011
  • Est. Priority Date: 08/07/2006
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, from an image sensor, a target digital image contaminated by noise of unknown magnitude that is represented by a reference digital image; and

    applying a process that uses a variance minimization analysis with respect to the target digital image and the reference digital image, to estimate a magnitude of the noise for at least some pixels of the target digital image.

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