DIGITAL WATERMARKIG IN SPATIAL DOMAIN presentation
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
seminar presentation
Active In SP
**

Posts: 582
Joined: Apr 2010
#1
13-05-2010, 09:31 AM



.ppt   DIGITAL WATERMARKIG IN SPATIAL DOMAIN.ppt (Size: 1.69 MB / Downloads: 108)


¢ DIGITAL WATERMARKIG IN SPATIAL DOMAIN
¢
Presented By
¢ Ashok Kumar Sahoo Roll # EI 200118123



¢ OUTLINE

¢ Introduction
¢ Methods
¢ New Image Watermarking Algorithm
¢ Experimental Results
¢ Future Direction
¢ Conclusion


¢ INTRODUCTION

¢ Watermarking is a concept of embedding a special pattern, watermark, into a document
¢ Watermarking is a key process for the protection of copyright ownership of electronic data



¢ INTRODUCTION

¢ An existing scheme for still image watermarking in spatial domain is studied.
¢ The features of the algorithm are:
“ The watermark to be embedded is a visually meaningful binary image;
“ More resistant to any attack;
“ retrieval of embedded watermark is easy;
“ the watermark is perceptually invisible;



¢ WHY DIGITAL WATERMARKING

¢ Cryptography ensures confidentiality, authenticity, and integrity
¢ It cannot help after decryption
¢ Digital Watermarking can help
“ Prove ownership
“ Identify a misappropriating person
“ Trace the marked document™s dissemination through the network
¢ HOW IT WORKS
¢ TECHNICAL REQUIRMENTS


¢ METHODS FOR DIGITAL WATERMARKING

¢ Digital watermarking techniques can be divided into two broad categories:
¢ 1.Spatial domain methods .
¢ 2 Frequency domain methods.


¢ SPATIAL DOMAIN METHODS

¢ The term spatial domain refers to the aggregate of pixels composing an image. Spatial domain methods are procedures that operate directly on these pixels. Spatial Domain processes will be denoted by the expression ,
g(x,y)= T[f(x,y)]



¢ ATTACKS ON WATERMAKING

¢ Compression
¢ Rescaling
¢ Processing operation
¢ Cropping
¢ Multiple watermarks
¢ THE PROPOSED MODEL
¢ EMBEDDING WATERMARK
¢ WATERMARK DETECTION
¢ b=1 if Snew >So,
¢ b=0 Otherwise.



¢ EXPERIMENT RESULT

¢ The proposed algorithm was implemented using Matlab where the watermark is extracted after compression attack.
¢ Results



¢ EVALUATION

¢ A simple watermarking scheme
¢ Invisibility
¢ Resist to lossy compression
¢ Watermark is invisible even though the picture in binary format.



¢ APPLICATIONS

¢ Copyright defense
¢ Three types of watermark
i) Private-key
ii) Detection-key
iii) Public-key
¢ Trace the route of the certain files during distribution


¢ FUTURE DIRECTION

¢ Increase robustness against lossy compression
¢ Use better quad tree decomposition coding
¢ Change the way to insert key.
¢ Encode the watermark before embedding.
¢ Extend the watermark techniques to wireless environment


¢ CONCLUSION

¢ Video Watermarking is needed since copyright protection is essential
¢ Watermarking in spatial domain is different from frequency domain.
¢ Spatial domain watermarking model is proposed and implemented
¢ Watermark is embedded in MSB to increase the efficiency
THANK YOU!!!!
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  digital parking system project abstract jaseelati 0 734 15-01-2015, 02:42 PM
Last Post: jaseelati
  how to check eb reading in digital meter in tamilnadu jaseelati 0 269 27-12-2014, 01:53 PM
Last Post: jaseelati
  digital vehicle speedometer with password enabled speed limit setting jaseelati 0 282 23-12-2014, 02:21 PM
Last Post: jaseelati
  digital vehicle speedometer with password enabled speed limit setting jaseelati 0 289 20-12-2014, 01:55 PM
Last Post: jaseelati
  future scope of digital clock jaseelati 0 400 13-12-2014, 02:37 PM
Last Post: jaseelati
  digital frequency meter ppt jaseelati 0 326 11-12-2014, 04:34 PM
Last Post: jaseelati
  DIGITAL BROADCASTING PPT seminar ideas 2 1,017 08-03-2014, 02:23 PM
Last Post: seminar project topic
  nanotechnology paper presentation computer science topics 4 27,656 07-03-2014, 04:41 PM
Last Post: seminar project topic
  wifi seminar or presentation report electronics seminars 28 31,162 10-02-2014, 01:52 PM
Last Post: JoshuapupE
  Electronics seminar or presentation lists2 computer science crazy 10 5,753 04-02-2014, 12:33 AM
Last Post: krupa gowda