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Optical Image Addition and Encryption by Multi-Exposure Based on Fractional Fourier Transform Hologram |
CHEN Lin-Fei;ZHAO Dao-Mu |
Department of Physics, Zhejiang University, Hangzhou 310027 |
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Cite this article: |
CHEN Lin-Fei, ZHAO Dao-Mu 2006 Chin. Phys. Lett. 23 603-606 |
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Abstract We propose a new method to add different images together by optical implementation that is realized by the multi-exposure based on fractional Fourier transform hologram. Partial image fusion is proposed and realized by this method. Multiple images encryption can also be implemented by the multi-exposure of the hologram based on fractional Fourier transform. Computer simulations prove that this method is valid.
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Keywords:
42.30.Kq
42.30.-d
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Published: 01 March 2006
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