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Automated image quality control

  • US 5,600,574 A
  • Filed: 05/13/1994
  • Issued: 02/04/1997
  • Est. Priority Date: 05/13/1994
  • Status: Expired due to Term
First Claim
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1. A method of automatically measuring the performance of a plurality of functional components of an electronic digital imaging system, comprising the steps of:

  • storing metric thresholds for known good functional components including an image input device and image output device and an image storage memory;

    acquiring a sample image from a plurality of reference objects to produce a set of pixel data representative of the plurality of reference objects;

    measuring selected attributes from the set of pixel data for image acquisition, image storage and image output functional components and producing therefrom a set of feature statistics;

    comparing the set of feature statistics against the metric thresholds; and

    indicating it any one of the set of feature statistics fall below any one of the metric thresholds and indicating the failure of the functional component which resulted in the any one of the set of feature statistics to fall below any one of the metric thresholds.

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