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Method of scaling an image capable of line width preservation

  • US 5,539,534 A
  • Filed: 06/01/1993
  • Issued: 07/23/1996
  • Est. Priority Date: 06/03/1992
  • Status: Expired due to Fees
First Claim
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1. A method of scaling a first image to obtain a second image, comprising the steps of:

  • scaling the first image to obtain an intermediate image;

    projecting pixels of the intermediate image onto the first image to provide projected positions for second image pixels;

    determining a positional correction amount for each of said projected positions from a pixel value of at least one of pixels of the first image near the projected position;

    correcting each projected position by its corresponding determined correction amount; and

    determining a pixel value of each second image pixel from a pixel value of a first image pixel near the projected position after correction.

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