my $template = <<'TEMPLATE_END';
\section{${imfile}}
\begin{figure}[!hbp]
\centerline{\includegraphics[width=9cm, height=9cm]{ims/${imfile}_gd.png}}
\end{figure}

\begin{figure}[!hbp]
\centerline{\includegraphics[width=12cm, height=9cm]{${imfile}mfm.png}}
\end{figure}

\newpage
TEMPLATE_END

for (@text) {
  chomp;
  print substitute_vars($template, { imfile => $_ } );
}