LaTex技巧[10]：表格合并单元格

　　表格合并单元格，复制下面代码直接可以运行：

\begin{table}[!h]
\centering
\caption{Parameters of SROI} \label{tab2}
\begin{tabular}{cccccccc}
\hline
\multicolumn{1}{c}{\multirow{2}{1.2cm}{Number}}
& \multicolumn{5}{c}{(Frequency, Scale)}
& \multicolumn{1}{c}{\multirow{2}{1.6cm}{Direction Number}}
& \multicolumn{1}{c}{\multirow{2}{1.6cm}{Direction Increment}}
\\
\cline{2-6}
\multicolumn{1}{c}{}
& \multicolumn{1}{c}{1} & {2} & {3} & {4} & {5}
& \multicolumn{1}{c}{}
\\
\hline
Filter bank1 &(0.50,61)&(0.50,67)&(0.55,61)&(0.55,66)&(0.60,51)&8&$\pi/8$
\\
Filter bank2 &(0.20,63)&(0.35,71)&(0.35,89)&(0.37,105)&(0.40,103)&8&$\pi/8$
\\
Filter bank3&(0.20,79)&(0.25,94)&(0.30,75)&(0.30,107)&(0.35,54)&8&$\pi/8$
\\
\hline
\end{tabular}
\end{table}