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General Information
    • ISSN: 2010-3751
    • Frequency: Bimonthly (2012-2016); Quarterly (Since 2017)
    • DOI: 10.18178/IJFCC
    • Editor-in-Chief: Prof. Mohamed Othman
    • Executive Editor: Ms. Cherry L. Chan
    • Abstracting/ Indexing: Google Scholar,  Crossref, Electronic Journals LibraryEI (INSPEC, IET), etc.
    • E-mail:  ijfcc@ejournal.net 
Prof. Mohamed Othman
Department of Communication Technology and Network Universiti Putra Malaysia, Malaysia
It is my honor to be the editor-in-chief of IJFCC. The journal publishes good papers in the field of future computer and communication. Hopefully, IJFCC will become a recognized journal among the readers in the filed of future computer and communication.
IJFCC 2012 Vol.1(3): 308-311 ISSN: 2010-3751
DOI: 10.7763/IJFCC.2012.V1.83

Impact Analysis for Securing Image Data using Hybrid SLT and DCT

M. A. Faizal, Hidayah Binti Rahmalan, Eko Hari Rachmawanto, and Christy Atika Sari

Abstract—This paper propose a hybrid technique in securing image data that will be applied in telemedicine in future. Based on the web-based ENT diagnosis system using Virtual Hospital Server (VHS), patients are able to submit their physiological signals and multimedia data through the internet. In telemedicine system, image data need more secure to protect data patients in web. Cryptography and steganography are techniques that can be used to secure image data implementation. In this paper, steganography method is suggested to be applied using hybrid between Discrete Cosine Transform (DCT) and Slantlet Transform (SLT) technique. DCT is calculated on blocks of independent pixels, a coding error causes discontinuity between blocks resulting in annoying blocking artifact. While SLT applies on entire image and offers better energy compaction compare to DCT without any blocking artifact. Furthermore, SLT splits component into numerous frequency bands called sub bands or octave bands. It is known that SLT is a better than DWT based scheme and better time localization. Weakness of DCT is eliminated by SLT that employ an improved version of the usual Discrete Wavelet Transform (DWT). Some comparison of technique is included in this paper to show the capability of the hybrid SLT and DCT.

Index Terms—Steganography, discrete cosine transform, slantlet transform.

The authors are with the Universiti Teknikal Malaysia Melaka (UTeM), Melaka 76109 Malaysia (e-mail: faizalabdollah@utem.edu.my; hidayah@utem.edu.my; rachmawanto@research.dinus.ac.id; atikasari@research.dinus.ac.id)


Cite: M. A. Faizal, Hidayah Binti Rahmalan, Eko Hari Rachmawanto, and Christy Atika Sari, "Impact Analysis for Securing Image Data using Hybrid SLT and DCT," International Journal of Future Computer and Communication vol. 1, no. 3, pp. 308-311, 2012.

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