SVD-based Blind Digital Watermarking with Vector Replacing
Bao Jin-fei · Communications technology · 2009
Based on property analysis of signal value decomposition,a singular value decomposition(SVD)-based blind watermarking technique is proposed,which replaces the signal vectors of host with the signal vectors of watermarking.By making SVD on the host image block,the singular vectors and singular values are replaced with the corresponding ones of the watermark block.According to the sizes of the host image and watermark,the watermark is embedded iteratively,and the mean value is adopted when the watermark extracted.The algorithm is simple and easy in implementation,the extracted watermark is of high similarity.This algorithm could be applied in copyright protection and authentication of the high-quality image.