Resilient Watermarking Algorithm to Printing and Scanning Combining Local Feature Regions and DWT-SVD
Xiaolei Zhao, Honghong Lin, Xu Xibin, Qingqing Zeng · 2022
Resilient digital watermarking to printing and scanning is of great significance in protecting important paper documents. How to improve the robustness of digital watermark is a difficult research point. In order to achieve a more robust resilient algorithm to printing and scanning and improve the correct detection rate of watermark, a resilient watermarking algorithm combining stable local feature regions and DWT-SVD is proposed. This algorithm is mainly divided into two parts, the first is to construct local feature regions, the second is to embed watermark information repeatedly, and the watermark detection is an inverse process. Experiments show that the algorithm has achieved good results in resisting conventional attacks and printing and scanning.