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BLUR DETECTION WITH LOCAL SHARPNESS MAP

  • US 20120162527A1
  • Filed: 12/22/2010
  • Published: 06/28/2012
  • Est. Priority Date: 12/22/2010
  • Status: Active Grant
First Claim
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1. A probe for determining image blurriness comprising:

  • a first set of edge filters for detecting fast edges within an input image to produce a plurality of fast edge filter outputs;

    a second set of edge filters for detecting slow edges within the input image to produce a plurality of slow edge filter outputs;

    means for combining the fast edge filter outputs to produce a fast edge filter output array;

    means for combining the slow edge filter outputs to produce a slow edge filter output array;

    means for decimating the fast edge and the slow edge filter output arrays separately to produce decimated fast edge filter array and a decimated slow edge filter array; and

    means for processing the respective decimated fast edge and slow edge filter arrays to generate a localized maximum sharpness value as a measure of the blurriness of the input image.

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