Robust Audio Watermarking Comparison between Modified Phase and Wavelet Based Techniques
نویسنده
چکیده
Watermarking is a branch of data hiding, it embeds data in digital media without perceptible interference to the original quality, mainly to protect the intellectual property rights and protect digital media from tampering. In this research paper an adaptive audio watermarking is proposed based on the low and high wavelet frequencies band (LF, HF). The embedded watermark can be of any types of signal (text, audio and image). The insertion of the watermark data is performing in a frequency domain after applying discrete wavelet transformation on the cover audio segments. The normalize correlation and the signal to noise ratio metrics are used to test the performance of the proposed method in terms of the robustness and imperceptibility. Test results show that an improvement of the robustness against some type of attacks when the watermark is adaptively embedded in a different wavelet bands. KeywordsAudio Watermarking; Transform Domain; Copyright Protection; Imperceptibility; Robustness
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