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Method and system for processing images

  • US 6,912,004 B1
  • Filed: 07/16/1999
  • Issued: 06/28/2005
  • Est. Priority Date: 09/15/1998
  • Status: Expired due to Term
First Claim
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1. An image processing method comprising:

  • dividing an image into a matrix of pixels for holding color values;

    forming a first set of pixels that are positioned adjacent to a selected pixel;

    calculating a first variation value;

    forming a second set of pixels that are positioned adjacent to the selected pixel;

    calculating a second variation value;

    comparing the first and second variation values and selecting the set of pixels having a lowest variation value; and

    calculating a first color value of the selected pixel by calculating the first color value from first color values of the selected set of pixels, wherein said calculating a first variation value and said calculating a second variation value respectively comprise calculating a ratio between first color values and second color values of abutting pixels of the respective set of pixels, calculating a mean value of the calculated ratios, and calculating a variation value of the respective set of pixels as a sum of an absolute value of a difference between each of the ratios and the mean value.

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