Geometric Distortions Correction Scheme Based on Hausdorff Distance for Digital Watermarking Image
- Resource Type
- Conference
- Authors
- Nian, Guijun; Tang, Xiaonian; Wang, Dan
- Source
- 2010 Second International Conference on Multimedia and Information Technology Multimedia and Information Technology (MMIT), 2010 Second International Conference on. 2:43-46 Apr, 2010
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
General Topics for Engineers
Watermarking
Distortion measurement
Physics
Feature extraction
Parameter estimation
Information technology
Electronic mail
Detectors
Immune system
Image edge detection
- Language
One of the methods for detecting watermarks after geometrical distortions is correcting distorted watermarked image before detecting. In this paper, a definition of weight Hausdorff distance is defined. It is applied to evaluation the similarity between original and geometric distorted watermarking image. A fast divide and conquer strategy in six dimension is used to search the transformation parameters. The geometric distortion is corrected by the parameters. As a result, a distorted watermarking image could be corrected based on image feature.