2 \usepackage{epsfig,psfrag}
8 \usepackage{mathptmx,amsmath,amssymb,bm}
11 \usepackage{mathtools,etoolbox}
26 \DeclarePairedDelimiter{\abs}{\lvert}{\rvert}
28 % correct bad hyphenation here
29 \hyphenation{op-tical net-works semi-conduc-tor}
34 \title[STABYLO]{STABYLO:
35 a lightweight edge-based steganographic approach}
37 \author{Jean-Fran\c cois Couchot, Raphael Couturier, and Christophe Guyeux\thanks{Authors in alphabetic order}}
40 \affiliation{ FEMTO-ST Institute, UMR 6174 CNRS\\
41 Computer Science Laboratory DISC,
42 University of Franche-Comt\'{e},
44 \email{\{raphael.couturier, jean-francois.couchot, christophe.guyeux\}@univ-fcomte.fr}
46 \shortauthors{J.-F. Couchot, R. Couturier, and C. Guyeux}
58 \newcommand{\JFC}[1]{\begin{color}{green}\textit{#1}\end{color}}
59 \newcommand{\RC}[1]{\begin{color}{red}\textit{}\end{color}}
60 \newcommand{\CG}[1]{\begin{color}{blue}\textit{}\end{color}}
65 %IEEEtran, journal, \LaTeX, paper, template.
66 %\keywords{Steganography, least-significant-bit (LSB)-based steganography, edge detection, Canny filter, security, syndrome trellis codes}
80 A novel steganographic method called STABYLO is introduced in
82 Its main advantage is to be much lighter than the so-called
83 Highly Undetectable steGO (HUGO) scheme, a well-known state of the art
84 steganographic process in the spatial domain.
85 Additionally to this effectiveness,
86 quite comparable results through noise measures like PSNR-HVS-M,
87 and weighted PSNR (wPSNR) are obtained.
88 To achieve the proposed goal, famous experimented
89 components of signal processing,
90 coding theory, and cryptography are combined together, leading to
91 a scheme that can reasonably face up-to-date steganalysers.
99 \section{Introduction}\label{sec:intro}
103 \section{Presentation of the Proposed Approach}\label{sec:ourapproach}
104 \input{ourapproach.tex}
106 \section{Experiments}\label{sec:experiments}
110 \section{Conclusion}\label{sec:concl}
112 The STABYLO algorithm, whose acronym means STeganography
113 with cAnny, Bbs, binarY embedding at LOw cost, has been introduced
114 in this document as an efficient method having comparable, though
115 somewhat smaller, security than the well-known
116 Highly Undetectable steGO (HUGO) steganographic scheme.
117 This edge-based steganographic approach embeds a Canny
118 detection filter, the Blum-Blum-Shub cryptographically secure
119 pseudorandom number generator, together with Syndrome-Trellis Codes
120 for minimizing distortion.
121 After having introduced with details the proposed method,
122 we have evaluated it through noise measures (namely, the PSNR, PSNR-HVS-M,
123 BIQI, and weighted PSNR) and we have used well-established steganalysers.
125 % Of course, other detectors like the fuzzy edge methods
126 % deserve much further attention, which is why we intend
127 % to investigate systematically all of these detectors in our next work.
132 For future work, the authors' intention is to investigate systematically
133 all the existing edge detection methods, to see if the STABYLO evaluation scores can
134 be improved by replacing Canny with another edge filter.
136 % to take into account the least significant bits too during all the
137 % stages of the algorithm, hoping by doing so to be closer to the HUGO scores against
139 Other steganalysers than the ones used in this document will be
140 examined for the sake of completeness. Finally, the
141 systematic replacement of all the LSBs of edges by binary digits provided
142 by the BBS generator will be investigated, and the consequences of such a
143 replacement, in terms of security, will be discussed.
144 Furthermore, we plan to investigate information hiding on other models, such as high frequency for JPEG encoding.
147 \bibliographystyle{compj}
148 \bibliography{biblio}