Title :
Encryption of wavelet-coded imagery using random permutations
Author :
Norcen, Roland ; Uhl, Andreas
Author_Institution :
Dept. of Sci. Comput., Salzburg Univ., Austria
Abstract :
In this paper we investigate the impact of using random coefficient permutation to provide confidentiality in wavelet-based still image compression pipelines. We compare the changes in compression performance of JPEG 2000 and SPIHT-based schemes and discuss key management scenarios. The results also have interesting implications with respect to the significance of the zerotree hypothesis.
Keywords :
cryptography; data compression; image coding; transform coding; wavelet transforms; encryption; image compression pipeline; key management; random coefficient permutation; wavelet-coded imagery; zerotree hypothesis; Cryptography; Data security; Discrete cosine transforms; Image coding; Pipelines; Runtime; Scientific computing; Streaming media; Transform coding; Video compression;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1421852
