Rank: 411 based on 301 downloads (last 30 days) and 8 files submitted
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Francesco Pizzo

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Company/University
SUN - Second University of Naples
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40.971367, 14.2045

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Professional Interests:
Everything that works!

 

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Files Posted by Francesco View all
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(last 30 days)
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12 Sep 2012 Screenshot Watermark Project (Watermarking) An application that can be used to hide "ascii text" or "images" into another image using watermark Author: Francesco Pizzo image processing, communications, watermark, self_rating, gui, information encryptin... 119 8
  • 4.57143
4.6 | 7 ratings
08 May 2011 Screenshot Simple exemples of 16QAM & BPSK modulators Two simple simulations in simulink on QAM & PSK modulators. Author: Francesco Pizzo simulation, signal processing, simulink, modulation, qam, psk 21 0
  • 1.0
1.0 | 1 rating
18 Mar 2011 Screenshot Simple Example of Simulated Annealing Optimization Example of developing a hybrid solution (Simulated Annealing + Pattern Search) for a case of study. Author: Francesco Pizzo optimization, simulated annealing, smes, pattern search, minimum 26 0
  • 5.0
5.0 | 1 rating
11 Nov 2010 Screenshot Simple Exemple of Arithmetic Coding It calculate the arithmetic code of a string of char, subject to an alphabet "A" Author: Francesco Pizzo mathematics, communications, coding 20 0
  • 5.0
5.0 | 1 rating
10 Nov 2010 Exemple of Lempel Ziv Coding A function that codes a string of chars with Lempel Ziv coding Author: Francesco Pizzo communications, mathematics, zip, file compression 21 5
  • 5.0
5.0 | 3 ratings
Comments and Ratings by Francesco View all
Updated File Comments Rating
02 Sep 2013 Watermark Project (Watermarking) An application that can be used to hide "ascii text" or "images" into another image using watermark Author: Francesco Pizzo

@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) ;)

03 Mar 2013 Exemple of Lempel Ziv Coding A function that codes a string of chars with Lempel Ziv coding Author: Francesco Pizzo

what do you mean with "main program"?

13 Feb 2013 Watermark Project (Watermarking) An application that can be used to hide "ascii text" or "images" into another image using watermark Author: Francesco Pizzo

@kostas Matlab 7.7 or grater

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

04 Nov 2012 Image processing laboratory An application with an intuitive GUI that you can use for some image processing exercises. Author: Francesco Pizzo

I have tried with tif images and it works. Maybe your error it is due to the matlab version, which version do you use?
Remember that to run the application it is necessary to type "img_lab" into the command line ;)

03 Apr 2012 Image processing laboratory An application with an intuitive GUI that you can use for some image processing exercises. Author: Francesco Pizzo

thank you for rating :)

Comments and Ratings on Francesco's Files View all
Updated File Comment by Comments Rating
05 Jun 2014 Exemple of Lempel Ziv Coding A function that codes a string of chars with Lempel Ziv coding Author: Francesco Pizzo elbarba, Johan

Works pretty good. I don't get the function of the 0:s that the function puts into the encoded data.
For a decoder make an extra output of the codebook. Then you can decode by simply:

tobedecoded=codedec(codedec~=0);
decodeddata=cell2mat(codebook(tobedecoded))';

02 May 2014 Exemple of Lempel Ziv Coding A function that codes a string of chars with Lempel Ziv coding Author: Francesco Pizzo Zain

02 May 2014 Simple Example of Simulated Annealing Optimization Example of developing a hybrid solution (Simulated Annealing + Pattern Search) for a case of study. Author: Francesco Pizzo PARAG

03 Dec 2013 Image processing laboratory An application with an intuitive GUI that you can use for some image processing exercises. Author: Francesco Pizzo Esperanza

Nice

07 Nov 2013 Watermark Project (Watermarking) An application that can be used to hide "ascii text" or "images" into another image using watermark Author: Francesco Pizzo Edwin

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