Combined DWT-DCT Digital Audio Watermarking
A robust audio digital watermarking algorithm is proposed. This algorithm watermarks a given digital audio using a combination of the Discrete Wavelet Transform(DWT) and the Discrete Cosine Transform(DCT).The multi-resolution of DWT and the de-correlation capability and energy aggregation of DCT are used. Performance evaluation results demonstrate that combining the two transforms can improve the performance of the watermarking algorithrus that are based solely on the DWT or DCT transform. Experimental results show that this proposed algorithm is imperceptible and robust against various signal processes and attacks such as noising adding, low-pass filtering, re-sampling, re-quantifying.
Digital audio watermarking DWT DCT audio copyright protection BCH code
Qi-yuan Su Hua-Qiang Yuan
Department of Computer Science and Engineer South China University of Technology Guangzhou, China Department of Computer Dong Guan University of Technology Dongguan, China
国际会议
成都
英文
650-653
2010-12-17（万方平台首次上网日期，不代表论文的发表时间）