1. CSE725

2.  Watermarking dates back in History.  Cryptography for protection.  Need of software for ownership protection.

3.  Definition  Imperceptible property  Robustness  Multiple watermarking (Discussed Later )

4.  Information Embedded unit.  Info. Like owner, timestamp etc.  Watermark detection unit.

5.  Perceptual Analysis  Information Spreading  Watermark Generation  Secret Key

7.  Detector provides binary output  Probability of detection and false alarm

8.  European project  Various agents involved  Main application e-commerce

9.  Entities involved.  Creation identification number.

10.  Creator  Creator provider  Distributor  Rights holder  Number issuer  Purchaser  Trusted third party  Search agent

11.  Additive Noise  Filtering  Cropping  Compression  Rotation and Scaling  Multiple watermarking.

12.  Video Watermarking  Audio Watermarking  Hardware/Software Watermarking  Text Watermarking  Executable watermarks  Labeling

13.  Fingerprinting  Copy and playback control

14. Questions?