widgets -- The DWT widget set and supporting classes
widgets — DWT 小部件集合和支持类
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While embedding watermarking, the watermarking sequences are produced by the chaos system, and are embedded into the low frequent coefficient of DWT domain to guarantee the robustness of watermarking.
On the basis of the characteristics of MP3 compression and local audio correlation, a new adaptive digital audio watermarking in DWT and DCT domain for protecting MP3 music copyright is proposed.