Hyperchaos permutation on false-positive-free SVD-based image watermarking

This paper reports the effect of hyperchaos permutation on the False-Positive-Free (FPF) Singular Value Decomposition (SVD)-based image watermarking scheme. To further improve the security aspect, the watermark image is firstly processed using the hyperchaos permutation before being embedded into the host image. In this scheme, only principal component of watermark image is inserted into the transformed host image to avoid the false positive problem. As reported in the experimental results, the proposed method satisfies the imperceptibility and robustness aspects. At the same time, the proposed method can suffer from the false positive problem which often occurs in the former existing SVD-based image watermarking schemes.