The method has robustness of both multiple timescale method and subband method.
本方法兼有多时间尺度方法和子带方法的抗噪性能。
2
In low frequency subband, the watermarking is embedded into host by the way of pixel-to-pixel embedding according to HVS model.
在低频分量部分,基于HVS视觉模型,将水印信号逐点变化地嵌入到原始图像中;
3
After the clustering characteristics of image wavelet coefficients' significance distribution in each sub-band was analyzed, run-length coding (RLC) was introduced into SPIHT's output stage.