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Method for sharpening a digital image with signal to noise estimation

  • US 20030161545A1
  • Filed: 02/27/2002
  • Published: 08/28/2003
  • Est. Priority Date: 02/27/2002
  • Status: Active Grant
First Claim
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1. A method of sharpening a digital image having image pixels according to its noise content, comprising the steps of:

  • a) providing an image sharpener having a variable parameter of sharpening;

    b) generating a noisy pixel belief map corresponding spatially to the image pixels having belief values indicating the likelihood that the modulation about respective pixels are due to system noise; and

    c) using the noisy pixel belief map to vary the parameter of the image sharpener.

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