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Methods and apparatus for securely transmitting and processing digital image data

  • US 6,647,149 B2
  • Filed: 01/03/2001
  • Issued: 11/11/2003
  • Est. Priority Date: 01/03/2001
  • Status: Active Grant
First Claim
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1. A method for processing digital image data comprising:

  • decomposing an image into low and high spatial frequency components;

    scrambling the low frequency components;

    compressing the high frequency components;

    transmitting the compressed high frequency components and the scrambled low frequency components from an origination site to a viewing destination;

    decompressing the compressed high frequency components at the viewing destination by reversing the compressing step;

    re-composing the decompressed high frequency components and the scrambled low frequency components into an image;

    descrambling the low frequency components; and

    displaying the image.

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