A Image-Adaptive Public Watermarking Technique based on DWT-SVD
Hao Xi · Microcomputer Information · 2007
Based on block DWT Decomposition and Singular Value Decomposition,we proposed a new algorithm with the method of embedding the watermarking into the largest singular value.Meanwhile we produced a formula to estimate the PSNR.Experiments and attack test show that the algorithm has good robustness on JPEG,median filter,sub-sampling,Gaussian low pass filter etc.