A new blind watermarking method for robust spatial-domain digital image in this paper. Zigzag transformation is utilized to scramble watermark and general a new watermark. Then, the watermark is embedded in bigger contrast regions of image by a quantization strategy. This scheme can be adapted to various texture images, and the algorithm of extracting the watermark doesn＇t need the original im- age, Experimental results show that the proposed method is robust for som...
