image authentication techniques ppt
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soham.ghatak
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#1
14-03-2010, 11:36 PM


I want image authentication techniques ppt. plz i have seminar and presentation day after tomorrow.. i have downloaded seminar and presentation report for this topic ... but i need ppt for this... plz help me.. i need it very urgently. plz send the ppt to my e mail id soham.ghatak@gmail.com
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seminar-avatar
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#2
18-03-2010, 06:20 PM

Sorry,
ppt of this topic is not available as of now. We will upload it as soon as it is available.
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
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ASADEVI
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#3
06-02-2011, 05:23 PM



i need the complete details about the

1. image authentication techniques

2.laser-communication

3.light-trees

4.CABLE_MODEMS

5.53RTOS-VxWorks


i want the ppt, doc, pdf.... etc the complete details..........

plz provide me this data......
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mosam.2788@gmail.com
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#4
01-08-2011, 11:18 PM

i want some new information on imade authentication technique
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seminar addict
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#5
02-08-2011, 09:35 AM

hi you can see these pages to get the details on IMAGE AUTHENTICATION TECHNIQUES

topicideashow-to-image-authentication-techniques--8262

topicideashow-to-virtual-reality-full-report
seminar and presentationproject and implimentationsattachment.php?aid=12071

topicideashow-to-image-authentication-techniques-seminar and presentation-report
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#6
06-03-2013, 08:28 PM

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#7
06-03-2013, 09:51 PM

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study tips
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#8
07-03-2013, 09:47 AM

To get full information or details of image authentication techniques please have a look on the pages

topicideashow-to-image-authentication-techniques-seminar and presentation-report

topicideashow-to-image-authentication-techniques-seminar and presentation-report?pid=90813#pid90813

topicideashow-to-free-ppt-on-image-authentication-technique

if you again feel trouble on image authentication techniques please reply in that page and ask specific fields in image authentication techniques
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study tips
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#9
01-06-2013, 03:09 PM

IMAGE AUTHENTICATION


.pptx   IMAGE AUTHENTICATION.pptx (Size: 1.12 MB / Downloads: 14)

WHAT IS DIGITALWATERMARK?

A Digital Watermark is a digital signal or pattern inserted into a digital image
The digital Watermark may also serve as a digital signature for the copies

REQUIREMENTS OF WATERMARK

The Watermark must be difficult or impossible to remove
An invisible Watermark should be imperceptible
The Watermark must survive image modifications

WATERMARKING A STILL IMAGE

The important steps in watermarking an image are:
1.Embedding the Watermark
2.Attacking the Watermarked image to test efficiency
3.Extraction of the Watermark

SPATIAL DOMAIN

Several different methods enable Watermarking in the spatial -domain
The simplest is to just flip the lowest-order bit of chosen pixels in color image
This will work well only if the image will not be subject to any human or noisy modification

FOR HIGH LEVEL SECURITY

The watermark embedding process should occur on the spot
The owner should have a database of watermarks and there should be a key in selection of the watermarks
There should be a MOBILE AGENT to watch which user has been accessing your website and that address should be added in the database
So hacking is 99.9999% impossible

ADVANTAGES OF DIGITAL WATER MARKING

Since we are making use of frequency domain, it takes much time for a hacker to find the particular frequency that we used in embedding.
Even if he is making a trial and error method to find the frequency with the downloaded images of same picture at different times, he can’t - since the frequency and watermarks vary each time for same image.
Since the owner is having a mobile agent, he can easily identify the wrong person
 
CONCLUSION

A robust and transparent Digital Watermarking for image copyright protection has been developed in this work.
The methods explained in this paper are by considering the texture of the image , these methods are robust and provide high imperceptibility
As a final word to say
“Security (success) is a journey, never a destination “
 
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