Dual Watermarking Scheme with Encryption

Digital Watermarking is used for copyright protection and authentication. In the proposed system, a Dual Watermarking Scheme based on DWT SVD with chaos encryption algorithm, will be developed to improve the robustness and protection along with security. DWT and SVD have been used as a mathematical tool to embed watermark in the image. Two watermarks are embedded in the host image. The secondary is embedded into primary watermark and the resultant watermarked image is encrypted using chaos based logistic map. This provides an efficient and secure way for image encryption and transmission. The watermarked image is decrypted and a reliable watermark extraction scheme is developed for the extraction of the primary as well as secondary watermark from the distorted image.

[1]  Tieniu Tan,et al.  An SVD-based watermarking scheme for protecting rightful ownership , 2002, IEEE Trans. Multim..

[2]  Ming-gen Cui,et al.  A New Chaos Encryption Algorithm Based on Parameter Randomly Changing , 2007, 2007 IFIP International Conference on Network and Parallel Computing Workshops (NPC 2007).

[3]  Ahmet M. Eskicioglu,et al.  ROBUST EMBEDDING OF VISUAL WATERMARKS USING DWT-SVD , 2005 .

[4]  G. Bhatnagar,et al.  DWT-SVD based Dual Watermarking Scheme , 2008, 2008 First International Conference on the Applications of Digital Information and Web Technologies (ICADIWT).

[5]  Osama S. Faragallah,et al.  An Efficient Chaos-Based Feedback Stream Cipher (ECBFSC) for Image Encryption and Decryption , 2007, Informatica.

[6]  Jin Liu,et al.  Analysis on an Image Encryption Algorithm , 2008, 2008 International Workshop on Education Technology and Training & 2008 International Workshop on Geoscience and Remote Sensing.