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Method of and device for inspecting images to detect defects

  • US 6,804,381 B2
  • Filed: 04/18/2001
  • Issued: 10/12/2004
  • Est. Priority Date: 04/18/2000
  • Status: Expired due to Term
First Claim
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1. A method of inspecting a web material containing defects, the method comprising:

  • acquiring an image of the web material, the acquired image comprising a plurality of pixels;

    attenuating the pixels in the acquired image corresponding to a defect free region;

    obtaining the energy of each pixel; and

    segmenting the defects.

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