\begin{overpic}[width=0.49\textwidth]{ys_ok10vma_h_25_sei}
\put(1,74){\colorbox{white}{(\sublabel{ys_ok10vma_h_25_sei}) \href{http://dream.misasa.okayama-u.ac.jp/?q=20190306094154-154716}{ys_ok10vma_h_25_sei}}}
%%(\subref{ys_ok10vma_h_25_sei}) \href{ys_ok10vma_h_25_sei}
\color{red}
\put(33.9,32.7){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20190304141437-869857}{spot of ys_kfs_ok10vma_h@24}} % 20190304141437-869857 % \vs(7495.0, -4607.0)
\put(50.0,40.0){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20190304141437-110825}{spot of ys_kfs_ok10vma_h@25}} % 20190304141437-110825 % \vs(7518.0, -4595.0)
%%scale 10 micro meter
\put(1,1){\line(1,0){7.0}}
\end{overpic}