Multimedia Systems

, Volume 9, Issue 3, pp 279–287 | Cite as

Selective encryption of wavelet-packet encoded image data: efficiency and security

Original Paper


Selective encryption provides the ability to strike a balance between security and processing demands, e.g., in mobile clients. Image encoding using wavelets, and especially wavelet packets, can be used for efficient selective encryption. We will show how two such methods work and discuss their advantages and disadvantages in terms of security and speed.


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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.Department of Scientific ComputingUniversity of SalzburgSalzburgAustria

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