*4.1.1 Embedding algorithm*

The embedding algorithm can be summarized in the following steps:


$$
\hat{\boldsymbol{\omega}}\_{\boldsymbol{\dot{y}}} = \boldsymbol{\omega}\_{\boldsymbol{\dot{y}}} + k \Big| \boldsymbol{\omega}\_{\boldsymbol{\dot{y}}} \Big| \mathbf{x}\_{\boldsymbol{\dot{y}}} \tag{5}
$$

where *wij* is the wavelet coefficient, *k* is a scaling parameter, *xij* is a watermark value, and is the watermarked wavelet coefficient.
