Full animated slides, produced to give the introductory+advance knowledge about watermaking techniques.

1. Digital Water Marking By Sheikh Qaisar Ayub Advanced Topics in Image Processing [email_address] Qaisar Ayub & Sulma Rashid

2. Watermark Observe image It is intellectual property Some one may spend a lot of time And thinking to compose this image

3. The image has been extended by any other person now he is owner of image

4. How to protect image ? P roblem Solution Watermark

16. Types of Digital Watermark 01100101 00000011 01101000 Encoder Key Data ENCODING Algorithm Note Watermark will not effect the composition of image

21. Example Extract Watermark Algorithm Watermark detected by the Algorithm and hence intellectual property can be saved.

22. Encoding & Decoding 01100101 00000011 01101000 Encoder Key Data ENCODING Algorithm Extract Watermark Algorithm DECODING Algorithm Communication Media 01101000

23. Mathematically Encoding X’ = EK (X,W) Hence X = Original Image W= watermark information being embedded K= user insertion key E= watermark insertion function X’ = Watermarked Image Mathematically Decoding W = DK’ (X’) Hence X’ = Watermarked image K’= extraction key D= watermark extraction function W= Extracted watermarked information

26. Application of watermark Finger Print IS File save ?

27. Application of watermark Finger Print Data Center-01 Data Center-02 Data Center-03 Network

28. Application of watermark Finger Print A invalid copy is found at any location Extract the embedded figure print From file A figure print is unique value form each data center Can identify the data center

29. Application of watermark Embed the number of copies to be allowed for copying embed in the hardware 4 4 3 2 1 Copy not allowed Click on image to Play

30. Application of watermark Fraud Detection Data Center-01 Data Center-02 Data Center-03 Network