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    Image encryption and the fractional Fourier transform

    Hennelly, Bryan M. and Sheridan, J. T. (2003) Image encryption and the fractional Fourier transform. Optik, 114 (6). pp. 251-265. ISSN 0030-4026

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    A number of method have been recently proposed in the literature for the encryption of 2-D information using optical systems based on the fractional Fourier fransform, FRT. In this paper a brief review of the methods proposed to date is presented. A measure of the strength/robustness of the level of encryption of the various techniques is proposed and a comparison is carried out between the methods. Optical implementations are discussed. Robustness of system with respect to misalignment and blind decryption are also discussed.

    Item Type: Article
    Additional Information: The authors would like to acknowledge the support of Enterprise Ireland through the Research Innovation Fund.
    Keywords: Fractional Fourier transform; optical image encryption; random phase mask; optical security;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Faculty of Science and Engineering > Electronic Engineering
    Item ID: 5809
    Depositing User: Dr. Bryan Hennelly
    Date Deposited: 10 Feb 2015 15:42
    Journal or Publication Title: Optik
    Publisher: Urban & Fischer Verlag
    Refereed: Yes
    Funders: Enterprise Ireland (EI)
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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