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Image defect correction in transform space

  • US 6,393,160 B1
  • Filed: 03/09/1999
  • Issued: 05/21/2002
  • Est. Priority Date: 03/13/1998
  • Status: Expired due to Term
First Claim
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1. A method for removing the effects of defects from an image comprising:

  • receiving a defective first image including a plurality of pixels, each having an intensity value;

    receiving a defect image of defects in the first image including a plurality of pixels, each having an intensity value and a correspondence to the first image pixels;

    selecting an element of the first image comprising a select pixel of the first image and a corresponding pixel of the defect image;

    determining an upper bound for the element as a function of the defect image;

    determining a lower bound for the element as a function of the defect image; and

    correcting the first image as a function of the upper and lower bound.

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