A New Steganography Based on χ2 Technic

  • Zainab Famili
  • Karim Faez
  • Abbas Fadavi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5856)

Abstract

In this paper, we proposed a new method for Steganography based on deceiving χ 2 algorithm. Since the cover image coefficients and stego image coefficients histograms have sensible difference for purposes of statistical properties, statistical analysis of χ 2-test reveals the existence of hidden messages inside stego image .We are introducing the idea for hiding messages in the cover image. It causes that DCT (Discrete Cosine Transforms) coefficient histogram not having remarkable modification before and after embedding message. As a result, the identifying of hidden message inside an image is impossible for an eavesdropper through χ 2-test. In fact, the proposed method increases the Steganography security against χ 2-test, but the capacity of embedding messages decreases to half.

Keywords

Steganography cover image stego image χ2-test 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Zainab Famili
    • 1
  • Karim Faez
    • 2
  • Abbas Fadavi
    • 3
  1. 1.Department of Electrical, Computer and IT Eng.Azad UniversityQazvinIran
  2. 2.Department of Electrical Eng.Amirkabir University of TechTehranIran
  3. 3.Department of Electrical Eng.Azad UniversityGarmsarIran

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