A geometrically robust image watermarking scheme based on scale invariant feature transform(SIFT) and pseudo-Zernike moment is proposed.Firstly,the steady feature points are extracted from the host image by using SIFT;then the size and orientation of each local feature region are ascertained adaptively according to its feature scale and orientation;Lastly,some unoverlapped local feature regions with large-scale are selected for embedding watermarking,and the same digital watermarking is embedded into each l...