A digital watermarking algorithm based on the combination of DWT and SVD
Ying Li · jOURNAL OF southwest University for Nationalities · 2007
A new watermarking algorithm for digital image based on the combination of DWT and SVD is proposed in this paper. The original image is split into four blocks equally, and then DWT is applied to each block. The watermarking image is decomposed with SVD after being Arnold scrambled. The singular values of scrambled watermarking are embedded into the singular values of each subband LL of each block. Experiment results have demonstrated that the proposed algorithm can keep good quality for watermarking image and has good robustness under the condition of the common image processing.