Robust Digital Image Watermarking Algorithm Based on DWT-SVD
Rong Zheng · Journal of Huangshi Institute of Technology · 2008
This paper introduces a robust digital image watermarking algorithm based on DWT-SVD.A gray image that has been dealt with by shuffle is made singular value decomposition firstly.After decomposing the cover image into four bands,the SVD is applied to each band,and embed the same watermark data by modifying the singular values.Simulation results show that high robustness can be obtained under the attack of normal signal processing,JPEG compression and geometric distortion.