Evaluation of Feature Extraction Techniques for Robust Watermarking [chapter]

Hae-Yeoun Lee, In Koo Kang, Heung-Kyu Lee, Young-Ho Suh
2005 Lecture Notes in Computer Science  
This paper addresses feature extraction techniques for robust watermarking. Geometric distortion attacks desynchronize the location of the inserted watermark and hence prevent watermark detection. Watermark synchronization, which is a process of finding the location for watermark insertion and detection, is crucial to design robust watermarking. One solution is to use image features. This paper reviews feature extraction techniques that have been used in featurebased watermarking: the Harris
more » ... ner detector and the Mexican Hat wavelet scale interaction method. We also evaluate the scale-invariant keypoint extractor in comparison with other techniques in aspect of watermarking. After feature extraction, the set of triangles is generated by Delaunay tessellation. These triangles are the location for watermark insertion and detection. Redetection ratio of triangles is evaluated against geometric distortion attacks as well as signal processing attacks. Experimental results show that the scale-invariant keypoint extractor is appropriate for robust watermarking.
doi:10.1007/11551492_32 fatcat:lvklsqnq6rc4xh6xdwcklfj45y