Abstract
Digital Watermarking plays an important role for copyright protection of multimedia data. This paper proposes a new watermarking system in frequency domain for copyright protection of digital audio. In our proposed watermarking system, the original audio is segmented into non-overlapping frames. Watermarks are then embedded into the selected prominent peaks in the magnitude spectrum of each frame. Watermarks are extracted by performing the inverse operation of watermark embedding process. Simulation results indicate that the proposed watermarking system is highly robust against various kinds of attacks such as noise addition, cropping, re-sampling, re-quantization, MP3 compression, and low-pass filtering. Our proposed watermarking system outperforms Cox’s method in terms of imperceptibility, while keeping comparable robustness with the Cox’s method. Our proposed system achieves SNR (signal-to-noise ratio) values ranging from 20 dB to 28 dB, in contrast to Cox’s method which achieves SNR values ranging from only 14 dB to 23 dB.
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Dhar, P.K., Khan, M.I., Kim, CH., Kim, JM. (2010). An Efficient Audio Watermarking Algorithm in Frequency Domain for Copyright Protection. In: Kim, Th., Fang, Wc., Khan, M.K., Arnett, K.P., Kang, Hj., Ślęzak, D. (eds) Security Technology, Disaster Recovery and Business Continuity. Communications in Computer and Information Science, vol 122. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17610-4_12
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DOI: https://doi.org/10.1007/978-3-642-17610-4_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-17609-8
Online ISBN: 978-3-642-17610-4
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