\documentclass[a4paper,10pt]{report}

\usepackage[italian]{babel}
\usepackage[utf8x]{inputenc}
%\usepackage[latin1]{inputenc}
\usepackage{lipsum} 

\usepackage{graphicx} % gestisce immagini e figure

\graphicspath{{img_esempi/}}

\begin{document}


\lipsum[1]

\includegraphics{lion}

\lipsum[2]


\end{document}