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Structure and method for secure image transmission

  • US 5,541,993 A
  • Filed: 05/10/1994
  • Issued: 07/30/1996
  • Est. Priority Date: 05/10/1994
  • Status: Expired due to Fees
First Claim
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1. A method for scrambling an image, comprising the steps of:

  • receiving a scrambling key;

    storing said image in a first storage device as image data in accordance with a first data structure;

    dividing said image data into a plurality of data segments, each data segment being image data corresponding to one of a plurality of designated areas in said image under a first mapping between said data segments and said designated areas;

    scrambling said plurality of data segments in a pseudo-random manner using a scrambling algorithm which receives as input said scrambling key and providing as output a scrambled image formed by associating said data segments and said designated areas under a second mapping, different from said first mapping, between said data segments and said designated areas; and

    storing said scrambled image in said first storage device as image data in accordance with a second data structure.

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