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Digital Watermarking

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Outline Introduction

Properties And Classification

Working Principle

Relative Concepts

Advantages And Disadvantages

Applications Conclusion

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Introduction

Our Digital World

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Introduction (Contd)

Efficient data storage and transmission

Easy duplication and manipulation

Copying Without Quality Loss

Advantages Of Digital Document

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Introduction (Contd)

Disadvantages of Digital Documents

Illegal Copyright

Duplication Or Falsification

No Copyright Protection

No Owner Identification

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Introduction(Contd)Need Of Digital Watermarking

To Prevent Illegal copying

For Proof Of Ownership

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Properties & Classification

Properties=>

Robustness

Perceptual Transparency

Security

Complexity

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Properties & Classification(contd)

Classification

Perceptible & imperceptible

Robust & Fragile

Private & Public

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Working Principle

Insertion Of Watermark

Extraction Of Watermark

Detection Of Watermark

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Relative concepts

Relavent terms

Information Hiding

Cryptography

Steganography

Watermarking

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Advantages And Disadvantages

Advantages=>Used in Military & civilian Applications

Web based Image Authentication

Disadvantages=>Watermark can be destroyed

Blind watermarking algorithm is not in

existenceWatermark can be vanish if algorithm is

known

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Applications

Broadcast Monitoring

Encoding

Copy & Playback Control

Content Authentication

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Conclusion

Digital Watermarking is powerful solution

to the problem of illegal copying.

Digital Watermarking is having other

important applications in field of piracy

protection.

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Bibliography1.F.Y.Daun,I.King,A short summary of digital watermarking tech-

Niques for multimedia data,Hong-Kong china.

2.Fernando perez-Gonz,Jaun R.Hern AndezA Tutorial On Digital

Watermarking,spain.

3.Michael GaylordComponents Of Digital Watermarking and their

Protection Of Ownership,University of Cape Down.

4.Onur Mutlu,An Overview of Image watermarking algorithm.

5.Elizabeth Ferrili,Matthew Moyer,A Survey Of Digital

Watermarking.

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Questions

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THANK YOU!!!!