Method for generating an improved carrier for use in an image da

Details Method for generating an improved carrier for use in an image da Method for generating an improved carrier for use in an image da

1997-04-28

2000-03-28

Cangialosi, Salvatore

Cryptography

By modifying optical image

H04Q 900

Patent

active

060441569

ABSTRACT:
A message is embedded into a digital image by forming a digitized version of the message and convolving the digitized message with a random phase carrier to form a scrambled message. The scrambled message is then combined with the digital image to form an embedded message image that is near impossible to extract without knowledge of the formation of the random phase carrier.

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Bruce Schneier, "Applied Crytography, Second Edition, Protocols, Algorithms, and Source Code in C," pp. 369-395 (1996).

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