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SELECTIVE DIFFUSION OF FILTERED EDGES IN IMAGES

  • US 20110229029A1
  • Filed: 01/19/2011
  • Published: 09/22/2011
  • Est. Priority Date: 01/19/2010
  • Status: Active Grant
First Claim
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1. A method of analyzing an image, the method comprising:

  • receiving at least one unfiltered image and at least one corresponding filtered image;

    selecting a first image element of the filtered image;

    selecting a first blurring operator;

    applying the first blurring operator to a neighborhood surrounding the first image element to determined a blurred image element, wherein the blurring operator is adapted to reduce a magnitude of a high spatial frequency component of an image spectrum relative to a magnitude of a low spatial frequency component of the image spectrum;

    evaluating an error metric to compare the blurred image element and the first image element with a corresponding image element of the unfiltered image;

    generating an output image including at least a first output image element; and

    in response to the error metric satisfying a first criteria, setting the first output image element to equal the blurred image element.

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