\begin{overpic}[width=0.49\textwidth]{Image_1970-01-06_22.38.57__0000}
\put(1,74){\colorbox{white}{(\sublabel{Image_1970-01-06_22.38.57__0000}) \href{http://dream.misasa.okayama-u.ac.jp/?q=20110329143950-245-081}{Image_1970-01-06_22.38.57__0000}}}
%%(\subref{Image_1970-01-06_22.38.57__0000}) \href{Image_1970-01-06_22.38.57__0000}
\color{red}
\end{overpic}
<?xml version="1.0" encoding="UTF-8"?>
<acquisitions>
</acquisitions>