Novel image watermarking algorithm base on ergodic matrix and DWT
Yuping Hu · Computer Engineering and Applications Journal · 2007
A novel robust image watermarking algorithm based on ergodic matrix and DWT is proposed. First,utilizing the ergodic matrix generated by specified keys,the bits of watermark are scrambled. Then the scrambled watermark image is embed into the deep wavelet domain of the host image,the embed positions are determined by the ergodic matrix,and the embed rule is determined via the improved binary operation. The original image is not required for detecting the watermarks. The experimental results demonstrate that the algorithm can ensure both robustness and safety of the watermark.