A watermarking scheme based on DCT, SVD and BCM

Many techniques are used to solve problems of security in the Internet such as cryptography or watermarking. In this context watermarking is a way for protecting copyright and proving authenticity of a digital data. In this paper, a non blind digital watermark scheme is proposed. It is based on Discrete Cosine transformation (DCT), singular Values Decomposition (SVD) and Beta Chaotic Map (BCM). The experimental results show that this scheme is robust against several attacks compared to other algorithms.