Code covered by the BSD License  

Highlights from
Watermark Project (Watermarking)

4.375
4.4 | 8 ratings Rate this file 134 Downloads (last 30 days) File Size: 10.1 MB File ID: #28410
image thumbnail

Watermark Project (Watermarking)

by

Francesco Pizzo (view profile)

 

07 Aug 2010 (Updated )

An application that can be used to hide "ascii text" or "images" into another image using watermark

| Watch this File

File Information
Description

An application that can be used to hide "ascii text" or "images" into another image using watermark.
-----------------------------------------
Video Example of usage:
http://www.youtube.com/watch?v=p4R6xzn9lrc


-----------------------------------------
Watermarking Project. The documentation file is "documentation.pdf". If you need help contact: pizzo.francesco@gmail.com.

MATLAB release MATLAB 8.0 (R2012b)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (14)
10 Nov 2014 Pratiksha M N

Time Complexity has to be reduced.

07 Nov 2013 Edwin

Edwin (view profile)

 
02 Sep 2013 Francesco Pizzo

Francesco Pizzo (view profile)

@Eric you are right! If you read the algorithm details it's clear that the image must remain unmodified after that a watermark is applied. This is just a simple example and it's obvious that if you need also robustness you should hide the information in another way (for example using a bi-dimensional cosine transformation) ;)

Comment only
02 Sep 2013 Eric LePage

The program doesn't seem to work if 1) the numeric code is input, and 2) if the image is cropped in between watermarking and retrieval. At least my computer took ten minutes to work on a cropped image, before throwing an error. So if the scheme is meant to protect copyright, it can be defeated easily. If the coding scheme uses absolute position references, maybe it could be improved with relative positioning?

Comment only
13 Feb 2013 Francesco Pizzo

Francesco Pizzo (view profile)

@kostas Matlab 7.7 or grater

@Abra_dog it's a steganographic watermarking (the information is kept secret)

Comment only
29 May 2012 putra kepritan  
06 May 2012 Lim

Lim (view profile)

 
08 Apr 2012 kostas

kostas (view profile)

It has error. I have matlab 7.1.
Does it run only on 7.7?

Comment only
03 Dec 2011 Ftkh

Ftkh (view profile)

 
21 Nov 2011 Abra dog

I don't quite understand this program. Am i suppose to be able to see the watermark?

Comment only
06 Jul 2011 Thang Minh

thanks

Comment only
27 May 2011 Sandeep Patil

Its a very good project, simple to understand, it cover watermarking and dewatermarking both which is not available in any sites.Good work.

24 Aug 2010 Tanyer Alan

Tanyer Alan (view profile)

 
11 Aug 2010 Anna DB

Anna DB (view profile)

a nice and simple program, a good starting point for the beginners to understand the basic principles of the watermarking technique.

Updates
14 Aug 2010

only add a screenshot!

21 Sep 2010

only a correction to the summary

29 Apr 2011

only a brief modify on description box

14 May 2011

Description's update

12 Sep 2012

Updated to include an App file for R2012b

Contact us