Sentence examples for spreading watermark from inspiring English sources

In the proposed watermarking model, the spreading watermark signal and a multi-bit watermark message can be inserted into the host signal simultaneously.

The watermarking method permits to insert a multi-bit message, and the spreading watermark signal simultaneously and reduces the mutual interference of them.

A binary message of length 192 bits was generated randomly and embedded into the extracted signal with the spreading watermark signal of length L=768.

Then, for a given distortion budget, the proportional embedding does not spread the watermark energy all over the image because most wavelet coefficients are small, but it focuses the watermark energy on the very few strong wavelet coefficients.

The method presented gradually spreads the watermark information over a region of pixels as implemented by the transform domain techniques.

Compared to the conventional echo-hiding system, this proposed method spreads the watermark bits throughout the whole signal and it recover them based on the correlation amount at the receiver.

We implemented the time-domain spread spectrum watermarking algorithm to embed and extract watermark.

Method [21] is spread spectrum watermarking, and the other ones are quantization-based watermarking.

As spread spectrum watermarking, Wang's method is definitely robust to AWGN and salt & pepper noise.

where is the watermark before spreading, is the spreading code or the pseudonoise sequence, while is the time-varying carrier frequency.

On the other hand, GA would determine threshold value of the host coefficients (process gain i.e. the length of spreading code) selection for watermark casting along with the respective embedding strengths compatible to the gain of frequency response.