The Collins Formula Applied in Optical Image Encryption
CHEN Lin-Fei1** , ZHAO Dao-Mu2 , MAO Hai-Dan1 , GE Fan1 , GUAN Rui-Xia3
1 School of Science, Hangzhou Dianzi University, Hangzhou 3100182 Department of Physics, Zhejiang University, Hangzhou 3100273 Department of Information Technology and Application, Zhejiang Yuying Vocational Technology College, Hangzhou 310018
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.
收稿日期: 2012-09-13
出版日期: 2013-04-28
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LIN Jie;**;CHENG Jing
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