Answers for "how to add the image in latex with specified dimenstion"

include image latex

\documentclass{article}

\usepackage{graphicx}

\begin{document}

\begin{figure}
  \includegraphics[width=\linewidth]{boat.jpg}
  \caption{A boat.}
  \label{fig:boat1}
\end{figure}

Figure \ref{fig:boat1} shows a boat.

\end{document}

latex image scale

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