Problem while using multirow with graphics

Question

I have a problem with the multirow command.

\begin{array}{|c|c|}
\includegraphics[width=1.5in]{1}
&
\multirow{2}{*}{
\includegraphics[width=1.5in]{3}
}
\\
\hline
\includegraphics[width=1.5in]{2}
& \\
\end{array}

results in this

|1| |
---3-
|2|3|
   3
   3

How to obtain the following :

|1|3|
---3-
|2|3|
| |3|

Answer 1

You don't need \multirow, but rather the adjustbox package.

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{adjustbox}
\begin{document}
\begin{tabular}{|c|c|}
\begin{adjustbox}{valign=t}
\begin{tabular}{@{}c@{}}
  \includegraphics[width=1.5in,height=1.3in]{a}\\[2ex]
  \includegraphics[width=1.5in,height=0.7in]{b}
\end{tabular}
\end{adjustbox}
&
\begin{adjustbox}{valign=t}
  \includegraphics[width=1.5in,height=1.7in]{c}
\end{adjustbox}
\end{tabular}
\end{document}

With valign=t we're shifting the reference point of the inner tabular and of the image to the right to their top.

Note. I've used height and the demo option just to produce mock figures; don't use them yourself.

Answer 2

An alternative solution is described here https://newbedev.com/placing-a-figure-inside-a-multirow-table-cell

In essence, the author suggests using [<fixup>] parameter of multirow like in the following:

\multirow{2}{*}[0.5in]{\includegraphics[width=2in]{...}}