Digital Watermarking Algorithm Based on Template and Local Feature

In view of the current status quo, which the feature-based digital watermarking is lack of robustness to non uniform scaling attacks, this paper puts forward a watermarking algorithm based template and local feature. Firstly, the template information is embedded in spatial domain. Then the improved Harris-Laplacian detector is utilized to extract steady feature points from the host image ,the local feature regions areas are constructed adaptively according to the feature scale theory; finally, the digital watermark are embedded into in the local feature regions using cirque quantization .Experimental results show that the proposed scheme is not only invisible and robust against common signals processing., but also robust against the geometric attacks In particular, non uniform scaling, etc.