Image Watermarking Algorithm Based on DWT-SVD Domain
Ming Zhang · Modern Computer · 2010
Discrete Wavelet Transformation(DWT) and Singular Value Decomposition(SVD)are used as tools for embedding data into an image.Proposes a hybrid watermarking algorithm based on DWT and SVD.Decomposes the whole image into four subbands,and then applies the SVD to each subband,and embeds the watermark data by modifying the singular values.Experimental result shows that the watermarking algorithm performs well in robustness,the embedded watermark can be detected reliably,following usual signal processing.