A Modified High Capacity Image Steganography Technique Based on Wavelet Transform

Ali Al-Ataby1 and Fawzi Al-Naima2‎
‎1Department of Electrical Engineering and Electronics, University of Liverpool, UK
‎2Department of Computer Engineering, Nahrain University, Iraq

Abstract: Steganography is the art and science of concealing information in unremarkable cover media so as not to arouse an ‎eavesdropper’s suspicion. It is an application under information security field. Being classified under information security, ‎steganography will be characterized by having set of measures that rely on strengths and counter measures (attacks) that are ‎driven by weaknesses and vulnerabilities. Today, computer and network technologies provide easy-to-use communication ‎channels for steganography. The aim of this paper is to propose a modified high-capacity image steganography technique that ‎depends on wavelet transform with acceptable levels of imperceptibility and distortion in the cover image and high level of ‎overall security.‎

Keywords: Steganography, security, wavelets, cryptography, and information hiding.‎