A robust image watermarking based on DWT-SVD domain
Cai Xiang-yun · Yunnan Daxue xuebao. Shehui kexue ban · 2005
A new watermarking method which combines the singular value decomposition(SVD) and the discrete wavelet transform.After decomposing separately the cover image and the watermark into four bands,we apply the SVD to each band.The singular values(SVs) of the watermark's each band need to be embedded into the bigger SVs of the original image' corresponding band so that the watermark is the more transparency.The experimental results show that the hidden watermark can withstand a lot of attacks,and has great robustness.