Abstract: In this paper, a digital watermarking algorithm based on nonncgative matrix factorization(NMF) and singular value decomposition(SVD))was proposed. The host image was decomposed with DWT. NMF and SVD were applied to the low frequency component of the original image. The watermark after Arnold scrambling was embedded into the singular value of the image. The experiment results indicate that the proposed scheme can obtain better visual effect and it is robust against attacks such as added noise, filtering and cropping.

Key words: DWT, NMF，SVD, Arnold scrambling