关键词: 参考水印, 离散小波变换, 奇异值分解, 虚警错误, 鲁棒性

Abstract: For the problem of high false-positive detection rate of a class of Singular Value Decomposition（SVD） based image watermarking scheme, an improved reference watermarking algorithm hybrid Discrete Wavelet Transform（DWT） and SVD is proposed. The host image is applied n-level DWT and selects any or all sub-bands to make reference image, and then performs SVD transform on the reference image. The gray watermarking is preprocessed by using Arnold transform and is embedded into the singular value matrix of SVD of reference image. Experimental results show that the proposed algorithm is secure and has good transparency. Compared with other schemes, it indicates that the algorithm can solve the problem of false-positive detection and robust against most common attacks.

Key words: reference watermarking, Discrete Wavelet Transform, Singular Value Decomposition, false alarm errors, robustness