fin avant choix revue

[canny.git] / experiments.tex

diff --git a/experiments.tex b/experiments.tex
index 776a5a5c8a39a68db06346fba4cc24d64d233958..7afd27cb88c7e0877857d9dceed97dc0955eddec 100644 (file)
--- a/experiments.tex
+++ b/experiments.tex
@@ -5,23 +5,42 @@ grayscale digital image in a RAW format.
 We restrict experiments to 
 this set of cover images since this paper is more focused on 
 the methodology than benchmarking.    
 We restrict experiments to 
 this set of cover images since this paper is more focused on 
 the methodology than benchmarking.    

-We use the matrices given in table~\ref{table:matrices:H}
-as introduced in~\cite{}, since these ones have experimentally 
+
+We use the matrices $\hat{H}$ 
+generated by the integers given
+in table~\ref{table:matrices:H}
+as introduced in~\cite{FillerJF11}, since these ones have experimentally 

 be proven to have the best modification efficiency.
 be proven to have the best modification efficiency.

+For instance if the rate between the size of message and the size of the host is 
+1/4, each number in $\{81, 95, 107, 121\}$ is translated into a binary number 
+and each one consitutes thus an column of $\hat{H}$. 

 
 \begin{table}
 $$
 \begin{array}{|l|l|}
 
 \begin{table}
 $$
 \begin{array}{|l|l|}

-\textrm{rate} & \textrm{matrix generators} \\
-$\frac{1}{2} & \{71,109\}
-$\frac{1}{3} & \{95, 101, 121\}
-$\frac{1}{4} & \{81, 95, 107, 121\}
-$\frac{1}{5} & \{75, 95, 97, 105, 117\}
-$\frac{1}{6} & \{73, 83, 95, 103, 109, 123\}
-$\frac{1}{7} & \{69, 77, 93, 107, 111, 115, 121\}
-$\frac{1}{8} & \{69, 79, 81, 89, 93, 99, 107, 119\}
-$\frac{1}{9} & \{69, 79, 81, 89, 93, 99, 107, 119, 125]
-
+\hline
+\textrm{Rate} & \textrm{Matrix generators} \\
+\hline
+{1}/{2} & \{71,109\}\\
+\hline
+{1}/{3} & \{95, 101, 121\}\\
+\hline
+{1}/{4} & \{81, 95, 107, 121\}\\
+\hline
+{1}/{5} & \{75, 95, 97, 105, 117\}\\
+\hline
+{1}/{6} & \{73, 83, 95, 103, 109, 123\}\\
+\hline
+{1}/{7} & \{69, 77, 93, 107, 111, 115, 121\}\\
+\hline
+{1}/{8} & \{69, 79, 81, 89, 93, 99, 107, 119\}\\
+\hline
+{1}/{9} & \{69, 79, 81, 89, 93, 99, 107, 119, 125\}\\
+\hline
+\end{array}
+$$
+\caption{Matrix Generator for $\hat{H}$ in STC}\label{table:matrices:H}
+\end{table}

 
 
 Our approach is always compared to Hugo~\cite{DBLP:conf/ih/PevnyFB10}
 
 
 Our approach is always compared to Hugo~\cite{DBLP:conf/ih/PevnyFB10}