\begin{overpic}[width=0.49\textwidth]{ys_ok10vma_h_48_bse}
\put(1,74){\colorbox{white}{(\sublabel{ys_ok10vma_h_48_bse}) \href{http://dream.misasa.okayama-u.ac.jp/?q=20190306154805-025004}{ys_ok10vma_h_48_bse}}}
%%(\subref{ys_ok10vma_h_48_bse}) \href{ys_ok10vma_h_48_bse}
\color{red}
\put(50.0,40.0){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20190304141438-143381}{spot of ys_pl_ok10vma_h@48}} % 20190304141438-143381 % \vs(-9121.0, 506.7)
%%scale 10 micro meter
\put(1,1){\line(1,0){10.0}}
\end{overpic}