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Method and system for searching for images based on color and shape of a selected image

  • US 6,606,417 B1
  • Filed: 04/19/2002
  • Issued: 08/12/2003
  • Est. Priority Date: 04/20/1999
  • Status: Expired due to Term
First Claim
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1. A method for computing a wavelet signature for an image comprising:

  • (a) centering the image on a field;

    (b) converting the image to a standard color space;

    (c) normalizing colors;

    (d) performing a wavelet transform;

    (e) finding a plurality of the largest coefficients by magnitude for each color plane;

    (f) encoding a row/column location for each of the largest coefficients by increasing resolution;

    (g) encoding the sign of the largest coefficients; and

    (h) storing weight values for the row/column location for the largest coefficients.

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