Watermarking of still images using multiresolution singular value decomposition

A novel robust image-adaptive digital watermarking algorithm using multi-resolution singular value decomposition (MR-SVD) is proposed in this paper. The proposed method strengthens the watermark based on the concept of entropy masking, while meeting the mark imperceptibility requirement. Experimental results show that the proposed method improves watermarking performance over watermarking methods in wavelet domain transform, in terms of both invisibility and robustness.