\begin{table}%t3
%\centering
\small
\caption{Fractal dimension measure for different fractals, 
before $D$ and after $D_{\rm sm}$ smoothing by convolution with a Gaussian
of ${\it FWHM}=2$, and  the relative error $\epsilon=(D-D_{\rm sm})/D$.  
Note that to distinguish resolution from pixelization induced effects, the error is
evaluated respect to $D$ and not to $D_{\rm th}$.
 \label{parset}} 
\begin{tabular}{ccrrc}                                        
\hline\hline
$ $ & $D_{\rm th}$  & \multicolumn{1}{c}{$D$}    & \multicolumn{1}{c}{$D_{\rm sm}$} &  \multicolumn{1}{c}{$\epsilon$} \\
\hline
fBm & $1.80$     & $1.516 $  &  $1.366 $  &   $9.9 \%$\\
fBm & $1.60$     & $1.413 $  &  $1.303 $  &   $7.8 \%$\\
von~Koch & $1.26$    & $1.310 $  &  $1.273 $  &   $2.8\%$\\                       
\hline
\end{tabular}
\end{table}