X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/canny.git/blobdiff_plain/457be557d1bb33d5d169605464822243e0ed6232..222b1caaf60e918817a332b5ce7774cf792fef59:/experiments.tex diff --git a/experiments.tex b/experiments.tex index 776a5a5..7afd27c 100644 --- 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 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. +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} $$ \begin{array}{|l|l|} -\textrm{rate} & \textrm{matrix generators} \\ -$\frac{1}{2} & \{71,109\} -$\frac{1}{3} & \{95, 101, 121\} -$\frac{1}{4} & \{81, 95, 107, 121\} -$\frac{1}{5} & \{75, 95, 97, 105, 117\} -$\frac{1}{6} & \{73, 83, 95, 103, 109, 123\} -$\frac{1}{7} & \{69, 77, 93, 107, 111, 115, 121\} -$\frac{1}{8} & \{69, 79, 81, 89, 93, 99, 107, 119\} -$\frac{1}{9} & \{69, 79, 81, 89, 93, 99, 107, 119, 125] - +\hline +\textrm{Rate} & \textrm{Matrix generators} \\ +\hline +{1}/{2} & \{71,109\}\\ +\hline +{1}/{3} & \{95, 101, 121\}\\ +\hline +{1}/{4} & \{81, 95, 107, 121\}\\ +\hline +{1}/{5} & \{75, 95, 97, 105, 117\}\\ +\hline +{1}/{6} & \{73, 83, 95, 103, 109, 123\}\\ +\hline +{1}/{7} & \{69, 77, 93, 107, 111, 115, 121\}\\ +\hline +{1}/{8} & \{69, 79, 81, 89, 93, 99, 107, 119\}\\ +\hline +{1}/{9} & \{69, 79, 81, 89, 93, 99, 107, 119, 125\}\\ +\hline +\end{array} +$$ +\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}