Displaying similar documents to “Transfer function measurements with statistical methods by means of digital computation”

M-ary phase modulation for digital watermarking

Yongqing Xin, Mirosław Pawlak (2008)

International Journal of Applied Mathematics and Computer Science

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In spread spectrum based watermarking schemes, it is a challenging task to embed multiple bits of information into the host signal. M-ary modulation has been proposed as an effective approach to multibit watermarking. It has been proved that an M-ary modulation based watermarking system outperforms significantly a binary modulation based watermarking system. However, in the existing M-ary modulation based algorithms, the value of M is restricted to be less than 256, because as M increases,...