latex resize image code example

Example 1: latex image scale

\begin{figure}[h!]
\centering
\includegraphics[width=50mm]{method.eps}
\caption{Overall process}
\label{fig:method}
\end{figure}

Example 2: latex image caption

\begin{figure}
    \includegraphics[width=\textwidth]{Picture}
    \caption{Picture caption}
\end{figure}