Single-random-phase holographic encryption of images
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- 作者：P.W.M. Tsang eewmtsan@cityu.edu.hk" class="auth_mail" title="E-mail the corresponding author
- 关键词：Holographic encryption ; Double-random-phase encryption ; Bi-directional error diffusion ; Single-random-phase encryption
- 刊名：Optics and Lasers in Engineering
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：89
- 期：Complete
- 页码：22-28
- 全文大小：2687 K
文摘
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A holographic method for encrypting images is proposed in this manuscript.
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A single random phase mask is employed as the encryption and decryption key.
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The source image is modified in an unknown way prior to encryption so that it is not possible to deduce the encryption key with existing plaintext attacks.
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The perceptual quality of the decrypted image is favorable.
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Complexity of the proposed encryption method is low.