초록
영어
In this paper, a novel algorithm of audio watermarking is presented on the base of preattacking
by predicting possible attacks for the special purpose of watermarking. Dividing frequency band in discrete wavelet transform (DWT) domain, and calculating the defined distortion measure, the appropriate band can be located to embed watermarking with hopping frequency technique. The imperceptible of audio host maintains by using psychoacoustics model to constrain the embedding strength. Experimental results show the proposed method obtains higher robustness to common watermarking attacks, especially for the forecasted attacks.
목차
1. Introduction
2. Watermarking Algorithm
2.1 Frequency Band Dividing and MeasureDistortion
2.2 Watermarking Embedding
2.3 Watermarking Extraction
3. Experimental Results
4. Conclusion
References