Robust watermarking using orthogonal Fourier–Mellin moments and chaotic map for double images

• Published in: Signal processing Vol. 120; pp. 522 - 531
• Main Authors: Shao, Zhuhong, Shang, Yuanyuan, Zhang, Yu, Liu, Xilin, Guo, Guodong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2016
• Subjects: Chaotic map; Double images; Image watermarking; Invariant features; Orthogonal Fourier–Mellin moment; Double images; Image watermarking; Invariant features; Chaotic map; Orthogonal Fourier–Mellin moment
• ISSN: 0165-1684; 1872-7557
• DOI: 10.1016/j.sigpro.2015.10.005

In this paper, a robust watermarking scheme based on orthogonal Fourier–Mellin moments and chaotic map is introduced, which achieves copyright authentication for double images simultaneously. The proposed scheme consists of an ownership registration phase and a verification phase. Compared to the congeneric schemes, the new scheme achieves a high level security and saves storage space. Firstly, two images are combined into a single-channel architecture, then the feature invariants derived from orthogonal Fourier–Mellin moments are computed and utilized to construct a binary feature image. Together with the watermark, they are scrambled by chaotic map and subsequently used for generating the verification image. Experimental results demonstrate the validity and security of the proposed scheme as well as its robustness against different attacks. •A novel robust watermarking scheme for double images is reported.•The introduced scheme employed moment invariants and chaotic map is more robust.•Moment order and initial values of chaotic map enhance the scheme's security greatly.