A New Watermarking Algorithm Based on DWT-SVD for Images
Lihong Wan · Microcomputer Information · 2010
Based on Discrete Wavelet Transform(DWT) and Singular Value Decomposition(SVD),a new watermarking algorithm is proposed.The main idea of our algorithm is that the watermarked image is obtained by embedding the singular values of the watermark into the DWT coefficients of the original image.Experimental evaluation demonstrates that our algorithm has good transparency and proves to be very strong robustness against a variety of attacks such as JPEG compression,filtering,cropping and adding noises,and the computing time complexity is very low.