subfigure with table

\begin{figure}

  \centering

  \begin{tikzpicture}

    \node[anchor=south west,inner sep=0] (a) at (0,0) {

        \subfloat[Pinhole aperture] {

          \begin{tabular}{cc}
            \includegraphics[width=0.25\textwidth]{./fig/855.png}
            \label{fig:pinhole}
          &
          \begin{tabular}{c|c}
            pes & kocka \\
            \hline
            mys & slon
          \end{tabular}
          \end{tabular}
        }

      };

    \begin{scope}[x={(a.south east)},y={(a.north west)}]

      \draw (0.8,0.8) node [text=black] {

          \begin{tabular}{c|c}
            \small 1 & 2 \\
            \hline
            \small 3 & 4
          \end{tabular}

        };

      %%{ grid

      % useful grid to help you find coordinates for plotting the overlay
      % \draw[black, xstep=.1, ystep=.1] (0,0) grid (1,1);
      % \foreach \i in {0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1} {
      %   \node[align=center] at (\i, -0.05) {\i};
      %   \node[align=center] at (\i, 1.05) {\i};
      %   \node[align=center] at (-0.05, \i) {\i};
      %   \node[align=center] at (1.05, \i) {\i};
      % }

      %%}

    \end{scope}

  \end{tikzpicture}

\end{figure}