Research scheme of double color image watermark based on Arnold scrambling
Hongwei Xu · Shenyang Gongye Daxue xuebao · 2008
For the existing problems of digital watermark technique used in copyright protection,a double color image watermark research scheme was designed.The algorithm used the Arnold scrambling and normalization methods for pretreatment,which makes watermark image more suitable for embedded need.In the embedding processing,a series of processing techniques such as DCT transformation,partial complexity factor,gray average and embedding energy were employed to realize better balance between watermark invisibility and robustness.The simulation results show that the color watermark with massive information can embed in color image by the algorithm,and the effect is satisfactory.