On the basis of analysis and evaluation of DCT (Discrete Cosine Transform) and order cumulates non-watermarking, a new non-watermarking based DWT (Discrete Wavelet Transform) is presented in order to improve the robustness of non-watermarking.

• 在对目前基于离散余弦变换DCT(Discrete Cosine Transform)变换域和高阶累积量的零水印算法作详细分析和评价的基础上,为了进一步提高零水印的鲁棒性,提出了一种新的基于离散小波变换域DWT(Discrete Wavelet Transform)的零水印方案。