Dual watermarking scheme based on dynamic feature set

This paper presents a dual watermarking scheme of digital images based on the dynamic feature points. In our dynamic feature watermarking scheme, the watermarking energy distributes on the dynamic feature set extracted by the key-decided orthogonal vector operator, and a dual watermark that is formed embedding copyright watermark into another child watermark consisting of features selected from the digital images is embedded into the circumjacent area of feature points through Chaotic sequence. Experimental resuts and theoretic analyses show that the scheme can stand against several attacks, especially interpretation attack (IBM attack).