doi: 10.4304/jsw.9.2.458-465
Image Encryption Algorithm Based on Wavelet Transforms and Dual Chaotic Maps
- Department of Instrument, Institute of Disaster Prevention, Sanhe,Hebei Province, China
Abstract
In view of characteristics of digital image,such asbulk data capacity,high redundancy and poor security, anew image encryption algorithm was put forward bycombining chaotic maps with wavelet transform. Mallatalgorithm in wavelet transform firstly was used todecompose the original image, leaving only the lowfrequencyinformation, and then oversampled Chebyshevchaotic maps were used to achieve space chaos ofcompressed image, oversampled Logistic chaotic maps wereused for encryption. Finally, security analysis of theencryption algorithm are analyzed from the perspective ofkey space, statistical analysis, key sensitivity analysis and soon. Simulation results show that the method can effectivelycompress image, the amount of information transmission islow and the key space is large enough to resist the bruteforceattack and with good encryption effect.
Keywords
- Chaotic Maps
- Image Encryption
- WaveletT
How to Cite
Shucong Liu, Yanxing Song, and Jingsong Yang, "Image Encryption Algorithm Based on Wavelet Transforms and Dual Chaotic Maps," Journal of Software, vol. 9, no. 2, pp. 458-465, 2014. https://doi.org/ 10.4304/jsw.9.2.458-465
Copyright & License
Copyright © 2014 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).