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Method for inspecting garments for holes having a contrasting background

  • US 5,283,443 A
  • Filed: 12/03/1992
  • Issued: 02/01/1994
  • Est. Priority Date: 04/17/1990
  • Status: Expired due to Fees
First Claim
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1. A method for inspecting garments for holes comprising:

  • front-lighting the garment against a contrasting background and forming a pixel image thereof,isolating garment pixels from background pixels by automatically selecting an optimum binarization threshold grey level,binarizing the image at that level,determining the garment boundary,testing for consistency of grey level within the garment boundary on the binarized image along rows and columns of pixels within the garment boundary and noting inconsistent pixels, andidentifying as holes only pixels which have been noted as inconsistent in both horizontal and vertical tests.

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