A Self-embedding Robust Watermarking Scheme for Image Authentication

A self-embedding robust watermarking scheme is designed in this paper. Construct a robust zero watermarking with the coefficients of three-level integer discrete wavelet transform (IWT) on the original image and self-embed into the original image to realize the blind authentication of digital images: Impose three-level IWT on the original image to get the low frequency sub-band (LL3); then, transform coefficients of LL3 into a binary image as the robust zero watermarking. After that, a self-embedding scheme is proposed to embed the constructed zero watermarking into the coefficients of U in the SVD on the low frequency sub-band (LL1). In order to improve the robustness and security of the whole scheme, the zero watermarking is permutated and encrypted based on hyper-chaotic system. Experimental results have demonstrated the validity and efficiency of the scheme.