Nedeljko Cvejic and Tapio Sepp
Watermark Bit Rate in Diverse Signal Domains
301 - 304
2007
1
2
International Journal of Electronics and Communication Engineering
https://publications.waset.org/pdf/11687
https://publications.waset.org/vol/2
World Academy of Science, Engineering and Technology
A study of the obtainable watermark data rate for information hiding algorithms is presented in this paper. As the perceptual entropy for wideband monophonic audio signals is in the range of four to five bits per sample, a significant amount of additional information can be inserted into signal without causing any perceptual distortion. Experimental results showed that transform domain watermark embedding outperforms considerably watermark embedding in time domain and that signal decompositions with a high gain of transform coding, like the wavelet transform, are the most suitable for high data rate information hiding. KeywordsDigital watermarking, information hiding, audio watermarking, watermark data rate.
Open Science Index 2, 2007