Title :
Chaotic Watermarking System for Audio Based on Wavelet Packet
Author :
Zhou, Bo ; Shi, Ai-guo
Author_Institution :
Dept. of Basic Sci., Dalian Naval Acad., Dalian, China
Abstract :
A method of encryption for embedding a meaningful gray image in the frequency domains of an audio signal is described. Chaotic sequence based on logistic map is adopted to improve the security of the proposed watermarking scheme by quantizing wavelet packet coefficients of audio samples. Simulations under various conditions are given to verify the effectiveness of the audio watermarking scheme. The results show the proposed scheme is secure, and the watermark is imperceptible and robust against audio signal processing attacks such as noising, low filtering, resampling and compressing.
Keywords :
audio watermarking; cryptography; wavelet transforms; audio samples; audio signal processing attacks; audio watermarking scheme; chaotic sequence; compressing; frequency domains; logistic map; low filtering; noising; quantization scheme; resampling; security improvement; wavelet packet coefficients; Chaos; Logistics; Quantization; Robustness; Time frequency analysis; Watermarking; Wavelet packets; audio watermarking; chaotic sequence; quantization scheme; wavelet packet;
Conference_Titel :
Chaos-Fractals Theories and Applications (IWCFTA), 2012 Fifth International Workshop on
Conference_Location :
Dalian
Print_ISBN :
978-1-4673-2825-8
DOI :
10.1109/IWCFTA.2012.45
