Hybrid Domain Audio Watermarking Embedding Algorithm Based on Redundant Discrete Wavelet Transform

摘要

In order to protect the digital rights of Internet digital media, an audio digital watermarking algorithm based on redundant discrete wavelet transform (RDWT), discrete cosine transform (DCT) and QR decomposition is proposed. The second-order redundant wavelet transform is carried out after the segmented original audio, the discrete cosine transform is carried out on the obtained approximate component, and the QR is decomposed into the low-frequency part to embed the watermark information. The experimental results show that the proposed algorithm has strong robustness and imperceptibility for common vicious attacks such as MP3 compression, resampling, low pass filtering, re-quantization and Gaussian agitation.