Print-scan resilient data hiding scheme applied in certificate verification
- Resource Type
- Conference
- Authors
- Nian, Guijun; Tang, Xiaonian; Wang, Dan; Liu, Hongshi
- Source
- 2010 3rd International Congress on Image and Signal Processing Image and Signal Processing (CISP), 2010 3rd International Congress on. 3:1161-1165 Oct, 2010
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Robotics and Control Systems
Components, Circuits, Devices and Systems
Watermarking
Nonlinear distortion
Robustness
Distortion measurement
Feature extraction
Printing
Optical filters
data hiding
digital watermarking
certificate verification
print-scan attack
- Language
A method to hide information into pictures in certificate that achieve robustness against printing and scanning is proposed. Aiming at three main distortions during the process of certificate manufacture, use and verification, the prediction error filter used in spatial watermarking. A kind of naturally robust watermark pattern is applied to resisting the local and small nonlinear distortion. The bigger geometric distortions are corrected by image registration based on Hausdorff distance.