Integer Wavelet Transform for Thermal ImageAuthentication

Tarek Gaber Faculty of Computers and Informatics,

Suez canal University, and SRGE member, Egypt

http://www.egyptscience.net the 6th International Conference on Soft Computing and Pattern Recognition (SoCPaR 2014), Fukuoka, Japan

Aboul Ella HassanienFaculty of Computers and Information,

Cairo University, and Chair of SRGE member, Egypt

Agenda

Introduction Problem Definition Research Aim

Proposed Method Results and DiscussionConclusion and Future Works

2

Introduction

3

the Internet is a popular communication channel for messages and images transmission which need protection and authentication in different scenarios.

Two ways main ways to achieve such protection Cryptography: making a message unreadable Steganography: concealing a message inside

another

Problem Definition 4

Problem Definition The data hiding-based steganography is used by

application where parties need to exchange messages through images while preserving visual fidelity of the image.

A well-known steganography methods are the one based on the least significant bit (LSB)

technique. Other methods enable hiding a variable length of bits

in each byte according to the characteristics of the human visual system.

5

Problem Definition Thermal imaging is a technique which

converts an invisible radiation pattern of an object into visible images for feature extraction and analysis.

This technique was first developed for military purposes but later gained a wide application in various fields such as medicine, veterinary, security surveillance and others.

6

Aim The aim of this research is:

Designing a thermal image authentication technique integrating the Integer Wavelet Transform (IWT) with a hash function.

7

Proposed Approach

8

SRGE workshop in Cairo University Conference Hall (7-November-2015)

The Proposed Method9

The Proposed Method of Embedding a Secret Image in a Cover Image

10

The Proposed Method

In this method, the thermal images were used as cover images bits from secret data (images) were then hidden in the

cover images. This was achieved by using

the hash function and IntegerWavelet Transform (IWT).

1, 2 and 3 bits per bytes have been hidden in both horizontal and vertical components of wavelet transform.

The Proposed Method11

Results

12

Used Dataset 10 thermal images (.ppm) were used as cover

images They have been taken by different cameras and

collected from the Internet. These images are 512x512 pixel in dimension The secret image that is used to be embedded in

the cover images is 128128 pixel in dimension.

13

Used Dataset14

Experimental Results15

The proposed technique was evaluated based on mean • square error (MSE), • peak signal to noise

ratio (PSNR), • image fidelity (IF)

Experimental Results PSNR and IF

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Experimental Results17

Comparison with Related Work

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Conclusion and Future Works Hash based thermal image authentication

technique using the Integer Wavelet Transform (IWT) was proposed

The performance of the proposed technique was evaluated using MSE, PSNR, and IF analysis and they have shown good performance for the proposed technique

A comparison with the most related work showed that our technique obtained a better performance

In the future, more analysis will be done to provide countermeasures to possible attacks.

19

Thanks and Acknowledgement20

SRGE workshop in Cairo University Conference Hall (7-November-2015)