Implementing watermarking in Matlab

[relizers]

wav watermark c++

ok...i have try it on matlab.. but i'm still not understand. this is the schemes
====================================================
audio signal -->STFT--->SVD-->embedding-->inverse STFT-->watermarked signal
|up
pseudo random signal-->XOR<--Binary sequence
====================================================
my question is
1. how to create pseudo random signal in matlab?
2. STFT in matlab?
3. SVD in matlab?

 

[leoren_tm]

matlab watermark embed

you have the CODES??????:idea::idea::idea::idea::idea:
can you send it to me??
lets help each other.......
my add....: leoren_tm@yahoo.com
use a lower version of matlab!!
got a 6.1 hir

Added after 4 minutes:

Singular Value Decomposition=SDV

 

[ashwini182]

Re: watermarking!!!

generating pseudo random signal is easy ..

u consider a very big integer say 10 digit number

>> find modulli for the number

>> shift it left and find modulii

repeat it several number of times as much as needed..

so that when the same number is given at ur receiver end..the sequence remains same and generates same pattern

 

[leoren_tm]

Re: watermarking!!!

hi asiwini!!!!!!

is that a C++ language????

 

[ashwini182]

Re: watermarking!!!

ooye leo!!!

am ashwini...dont mess up with my name

its in matlab that i said...wht so ever it's just alogic that can be implemented in anylanguage..

hey guys i found one link on watermarking

may be of gud help to u all


**broken link removed**


let me know if this link caught your interest.

 

[leoren_tm]

Re: watermarking!!!

sorYY,.....
huh??
the site is huge!!!!!!!!

Added after 1 minutes:

nad its just a link for books..hmmmmm
ill try to search for the free links..help me all
ty

 

[relizers]

Re: watermarking!!!

h**p://bhanupra.netfirms.com/ --> cool website !!

to : ashwini182
can you send me the sample code ?? maybe in matlab code!!

to : leoren_tm
i don't have the code....

================
maybe ashwini182 can help us...!!

i have some problem here..why audio stirmark cannot dowloaded??
does anyone have another link or the application ?? plizz share it to me

 

[leoren_tm]

Re: watermarking!!!

ISBN: 159140519X
Title: Digital Watermarking For Digital Media
Author: Juergen Seitz
Publisher: Information Science Publishing
Publication Date: 2005-05-20
Number Of Pages: 262
Average Amazon Rating: 4.0
**broken link removed**
3.3mb
pass- Mat.Riks.Info
Alternate ISBN posted NOV-2005, by lucas3000
ISBN: 1591405181
Title: Digital Watermarking for Digital Media
Author: Juergen Seitz
Publisher: Information Science Publishing
Publication Date: 2005-06
Number Of Pages: 262

Mirror posted DEC-2005, by pcicare

**broken link removed**

Added after 9 minutes:

ISBN: 1580530354
Title: Information Hiding Techniques for Steganography and Digital Watermarking
Author: Stefan Katzenbeisser
Publisher: Artech House Publishers
Publication Date: 2000-01
Number Of Pages: 220
Average Amazon Rating: 5.0

**broken link removed**

PASSWORD: Mat.Riks.Info

 

[relizers]

Re: watermarking!!!

wow...great !!!

 

[leoren_tm]

Re: watermarking!!!

huh???
i thougth i was one that need a help??
hehehehehhe...just a joke!!!!!if you need some book??
you can tell me..then ill be hapy to help!!!
pls tell me your profile...
hirs my email add: leoren_tm@yahoo.com

Added after 3 minutes:

i already donwloaded the audio steadmark!!!

Added after 19 minutes:

relizers

if you have time, pls explain me some important facts on that book...i got no time to scan that//..

 

[ashwini182]

Re: watermarking!!!

hey guys very sorry i will def mail u the codes by tmrw..i was bisy wit my wrk that i cdnt get time to chk my cds.

sorry 4 the delay , i shall post it as well mail u both ...

give me ur mail ids...i have just leo's mail id. hey leo can u get me some books on embedded c for PIC micros

like this one h**p://www.bestwebbuys.com/1401837484

or any good book u know...am learning to code pic18 micros in embedded c ...

will be glad if u can get me some books

be in touch ,

ashwini

 

[relizers]

Re: watermarking!!!

to : leoren_tm

i was acces that website but i can't download audio stirmark the browser said "cannot find the server at amsl-smb.cs.uni-magdeburg.de".
maybe u can help??send me via mail

relizers[at]yahoo.com

 

[azsh]

Re: watermarking!!!

to all:
hi guyz... um, i kinda consider myself a dummy for watermarking,.. hehe... though i really wanna know more about it.. do you guyz have documents for dummies like me?? thanks..

 

[ashwini182]

Re: watermarking!!!

hey ppl my project mates refused to post code online. so a small outline of audio watermarking is here..so thru the matlab help and read these functions am sure u 2 will watermark audio very sooner.

Host signal read and decompose

[y1,fs1] = wavread('host.wav');
y1 = y1,1);
[c1,l1] = wavdec(y1,3,'db6');


Watermark signal read and decompose

[y2,fs2] = wavread('watermark.wav');
y2 = y2,1);
[c2,l2] = wavdec(y2,2,'db6');


watermark algorithm :::::: goes here

watermarked signal reconstruct and write to disk

sum = wavrec(c1,l1'db6'); // after watermark signal is hidden into host... we
// reconstruct the host signal
wavwrite(sum,fs1,'Watermarked.wav');


I can assist you in ur project but am very sorry that i cdnt post the code as said earlier.. my friends dint like it.

all the best and mail me for any clarifications

-Ashwini

 

[relizers]

Re: watermarking!!!

how to convert text or string to biner in matlab ??

 

[ashwini182]

Re: watermarking!!!

why dont u go thru these


**broken link removed**

 

[relizers]

Re: watermarking!!!

have a original mono *.wav?? where i can download it ??

i was try to convert mp3 to wav, but the results still in stereo wav.

 

[leoren_tm]

Re: watermarking!!!

to ashwini182

sory..late reply.......
i cant open the site you give...
pls give me thje author and the title..maybe then i can help you.....]
sory for late reply

Added after 4 minutes:

Title: Programming PIC Microcontrollers with PICBASIC (Embedded Technology)
ISBN: 1589950011
Author: Chuck Hellebuyck
Publisher: Newnes
Edition: Bk&CD-Rom edition (December 30, 2002)
Paperback: 256 pages
h**p://rapidshare.de/files/11758928/Programming_PIC_Microcontrollers_in_BASIC.rar.html

 

[leoren_tm]

Re: watermarking!!!

Title: The Quintessential PIC® Microcontroller (Computer Communications and Networks)
ISBN: 185233309X
Author: Sidney J. Katzen
Publisher: Springer
Edition: 1 edition (September 16, 2003)
Pages: 486 pages
**broken link removed**

 

[leoren_tm]

Re: watermarking!!!

ISBN: 0071361723
Author: Myke Predko
Publisher: McGraw-Hill/TAB Electronics
**broken link removed**


**broken link removed**