Dual Image Watermarking Scheme based on Singular Value Decomposition and Visual Cryptography in Discrete Wavelet Transform
B. PushpaDevi, Kh. Manglem Singh, Sudipta Singha Roy · International Journal of Computer Applications · 2012
There is wide interest in multimedia security and copyright protection due to the explosion of data exchange in the Internet and the extensive use of digital media.An image watermarking scheme based on singular value decomposition and visual cryptography in discrete wavelet transform is proposed.We start with a survey of the current image watermarking technologies, and have noticed that majority of the existing schemes are not capable of resisting all attacks.We propose the idea to use of singular value decomposition and visual cryptography in discrete wavelet transform such that the primary watermarking scheme based on singular value decomposition in the discrete wavelet transform is empowered by the secondary watermarking scheme based on visual cryptography in discrete wavelet transform.Experiments are conducted to verify the robustness through a series of experiments.