A Robust Digital Watermarking Method based on A Wavelet Transform

DWT(Discrete Wavelet Transform) 기반의 강인한 워터마킹(watermarking) 기법

In this paper, we have introduced a new watermarking method using the Discrete Wavelet Transform (DWT). This method has two features. Firstly the trade-off between the quality and the robustness, and between the quality and the capacitance can be controlled. Next, this method use different scheme according to the watermarks. We have also implemented numerical examples for several kinds of attack. It is found that watermarking method in this paper is robust to above attacks.