Journal
OPTICS COMMUNICATIONS
Volume 281, Issue 21, Pages 5322-5325Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2008.07.048
Keywords
Sharing secret images; Image hiding; Combination theory
Categories
Funding
- National Natural Science Foundation of China [10674038, 10604042]
- National Basic Research Program of China [2006CB302901]
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We present a simple algorithm for sharing and hiding secret image based on combination theory. The secret image is firstly encrypted by matrix multiplications and then shared into many shadow images by multiplying binary random sampling matrices. The sampling matrices randomly assign the pixel values to the shadow images which satisfy a specific combination rule as a constrain, so that the (t,n) threshold secret sharing scheme can be implemented. Numerical experiments have demonstrated the effectiveness of this image sharing algorithm. (C) 2008 Elsevier B.V. All rights reserved.
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