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Decoding hidden data from imagery

  • US 7,068,812 B2
  • Filed: 03/07/2005
  • Issued: 06/27/2006
  • Est. Priority Date: 07/31/1992
  • Status: Expired due to Fees
First Claim
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1. A method of processing image data to recover hidden information, comprising:

  • discerning, from said image data, a message hidden therein, said discerning including performing an algorithmic registration process to resolve an initially unknown variable needed to discern the message from the image data, said image data corresponding to an encoded image corrupted by a geometrical transformation process, wherein the message is discerned notwithstanding said geometrical image transformation.

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