Steganography Techniques for Digital Images by Abid Yahya

Author:Abid Yahya
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

3.1 Introduction

This section debates the main structure of the proposed scheme and examines the theoretical aspects of the CR-BIS in detail. The chapter also explains the suggested framework which links three components, namely encryption, characteristic region detection, and steganography. In this chapter, the concept of characteristic region embedding is introduced into information-hiding in general and mainly to steganography. The characteristic regions in the image, rather than the whole image or certain locations in the image, are used to conceal secret information. Such a method will increase the security of the embedding process. To detect the characteristic regions, SURF technique is employed in the proposed algorithm. Those characteristic regions are described as robust to various transformations, such as rotation, scaling, cropping, and affine transformations, which enables them to resist possible attacks. This condition implies that those regions can be detected correctly even after applying attacks. Subsequently, the stego-system performance improved significantly against steganalysis attacks and data loss (Hamid et al., 2012a, 2013b; Abdul-mahdi et al., 2013).

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