A MatLab script for hiding text in image Essay

A MATLAB SCRIPT FOR HIDING TEXT IN IMAGE
Senior Project
by
Nour_ElDeen. Al Hamidy, 11510370
Rasha.Mallah, 11330921
Submitted to the School of Engineering of the
Lebanese International University
Beirut, Lebanon
in partial fulfillment of the requirements for the degree of
BACHELOR OF SCIENCE IN COMMUNICATION ENGINEERING
Spring 2016
Approved By
Supervisor Name Date Signature
Dr Samir Omar
Committee Member Name
Dr Michel Nahas Date Signature
DEDICATION
We proudly dedicate this project to our supervisor Dr. Samir Omar who always encouraged and supported us at all stages of this project. His involvement provided enthusiasm to complete and exert all our efforts for presenting our best. We're also honored to dedicate it to our dean Dr. Amin El Hajj and to all Engineering faculty members who always work hard and does their best to reach us high levels.
ACKNOWLEDGEMENTS
The project would not have been successfully completed without the wholehearted support of our guide Dr. Samir Omar. He always boosted our morals assiduously.
We would like to thank him for his conception and encouragement in the development of the project. He is a mentor who knew all answers. We admire his infinite understanding and patience that he guided us through a field we had no previous experience in.
Also we would like to thank all faculty members for their invaluable guidance and rendering us significant encouragement, in continuous support and guidance. We thank all other people who directly or indirectly assisted us in the successful and on time completion of "A Matlab Script for Hiding Text in Image".
ABSTRACT
Steganography is the science and art of invisible communication. This is accomplished through hiding information in other information. Many different formats of file carriers can be used, but images are the most popular because of their frequency over the Internet. There exist a large variety of techniques for steganography, for hiding secret information in images some are more complex than others and all have respective strong and weak points. Different applications have different requirements of the steganographic techniques used. For example, some applications may require complete invisibility of the secret information, while others require a larger secret message to be hidden. This project intends to show a sample program that uses image steganography to hide a text message. The receiver then decrypts the image to get the original message hid in it.
TABLE OF CONTENTS
Dedication i
Acknowledgements ii
Abstract iii
Table of Contents iv
List of Figures vi
Chapter 1. Introduction 1
1.1. introduction 1
1.1.1. History 1
1.1.2. Project's Goal 2
1.1.3. Motivation 2
1.2. image steganography 3
1.2.1. Image Definition 3
1.2.2. LSB Technique/Algorithm 3
Chapter 2. Project Specifications and Requirements 4
2.1. specifications 4
2.2. requirements 5
Chapter 3. Design 7
3.1. technical design 7
3.1.1. Encoding Process 8
Chapter 4. Results 10
4.1. program's interface 10
Chapter 5. Conclusion 13
References 14
LIST OF FIGURES
Figure 4.1 Home Page 2
Figure 4.2 The Encoder 2
Figure 4.3 Comparing Images 2
Figure 4.4 The Decoder 2
Figu