| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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The Collins Formula Applied in Optical Image Encryption |
| CHEN Lin-Fei1**, ZHAO Dao-Mu2, MAO Hai-Dan1, GE Fan1, GUAN Rui-Xia3 |
1School of Science, Hangzhou Dianzi University, Hangzhou 310018
2Department of Physics, Zhejiang University, Hangzhou 310027
3Department of Information Technology and Application, Zhejiang Yuying Vocational Technology College, Hangzhou 310018
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| Cite this article: |
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CHEN Lin-Fei, ZHAO Dao-Mu, MAO Hai-Dan et al 2013 Chin. Phys. Lett. 30 044201 |
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Abstract We propose a novel method for image encryption, which is realized by the Collins formula with the random shifting method. The Collins formula can denote different optical transforms by one expression with different ABCD elements. For a generalized optical system, the ABCD elements can be randomly chosen, so the keys are increased and the security of the system is strengthened. Finally, some computer simulations are given for different encryption systems to prove the possibilities. The encryption effect is good, and people without the correct keys can not obtain the information easily.
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Received: 13 September 2012
Published: 28 April 2013
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