A Digital Watermarking Algorithm for Images Based on DMWT and SVD
Xie Xiao-xian · Computer Engineering and Science · 2006
A novel blind image digital watermarking algorithm is presented in this paper.It makes full use of the multi-resolution of DMWT and the SVD characteristics of matrix and embeds a binary image watermark into the original image by the quantification process.The watermark can be extracted without the original image,among which a person who does not know the secret key cannot correctly retrieve the watermark.Experimental results indicate that the performance of the proposed watermarking algorithm is invisible,robust and secure.