Open Access Open Access  Restricted Access Subscription or Fee Access

Chaos based Crypto-Compression using SPIHT coding

S. Hraoui, F. Gmira, A. Saaidi, A.O. Jarrar, K. Satori


Nowadays, it is estimated that the bandwidth majority of internet is used to transfer images and videos. In this perspective, we propose a mix of a compression technique called SPIHT (Set Partitioning in Hierarchical Trees) and chaotic encryption in order to elaborate a crypto-compression scheme based on encrypting quantization by a modified logistic map. The Modified logistic map is used for generating random number sequence which is used in the proposed cryptosystem for its better chaotic properties. The random number sequence encrypts the bit-stream generated from SPIHT. The experimental results show that our system has good security properties and does not affect the effectiveness of the compression system and it considerably improves the image compression ratio while ensuring a good security performance.


image encryption; compression, bit-stream, wavelet, SPIHT, chaos, modified logistic map.

Full Text:



  • There are currently no refbacks.

Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.