[Tex/LaTex] how to group images in a figure

floats

I want to group images and assign the same sub-figure number in a figure consisting of several such groups. Please have a look at the following image to understand my question properly.

Best Answer

Two options, but the general idea is the same: to use one subfigure environment (requires subcaption) or \subfloat command (requires subfig) for each group.

Here's one option using the powerful subcaption package:

\documentclass{article}
\usepackage{subcaption}
\usepackage{graphicx}

\begin{document}

\begin{figure}
  \begin{subfigure}{\linewidth}
  \includegraphics[width=.3\linewidth]{example-image-a}\hfill
  \includegraphics[width=.3\linewidth]{example-image-a}\hfill
  \includegraphics[width=.3\linewidth]{example-image-a}
  \caption{}
  \end{subfigure}\par\medskip
  \begin{subfigure}{\linewidth}
  \includegraphics[width=.3\linewidth]{example-image-b}\hfill
  \includegraphics[width=.3\linewidth]{example-image-b}\hfill
  \includegraphics[width=.3\linewidth]{example-image-b}
  \caption{}
  \end{subfigure}\par\medskip
  \begin{subfigure}{\linewidth}
  \includegraphics[width=.3\linewidth]{example-image-c}\hfill
  \includegraphics[width=.3\linewidth]{example-image-c}\hfill
  \includegraphics[width=.3\linewidth]{example-image-c}
  \caption{}
  \end{subfigure}
  \caption{Some grouped images}
\end{figure}

\end{document}

The output:

enter image description here

And now with the help of the subfig package:

\documentclass{article}
\usepackage{subfig}
\usepackage{graphicx}

\begin{document}

\begin{figure}
  \subfloat[]{%
  \begin{minipage}{\linewidth}
  \includegraphics[width=.3\linewidth]{example-image-a}\hfill
  \includegraphics[width=.3\linewidth]{example-image-a}\hfill
  \includegraphics[width=.3\linewidth]{example-image-a}%
  \end{minipage}%
  }\par
  \subfloat[]{%
  \begin{minipage}{\linewidth}
  \includegraphics[width=.3\linewidth]{example-image-b}\hfill
  \includegraphics[width=.3\linewidth]{example-image-b}\hfill
  \includegraphics[width=.3\linewidth]{example-image-b}%
  \end{minipage}%
  }\par
  \subfloat[]{%
  \begin{minipage}{\linewidth}
  \includegraphics[width=.3\linewidth]{example-image-c}\hfill
  \includegraphics[width=.3\linewidth]{example-image-c}\hfill
  \includegraphics[width=.3\linewidth]{example-image-c}%
  \end{minipage}%
  }
  \caption{Some grouped images}
\end{figure}

\end{document}

The output:

enter image description here

Another option might be to use the floatrow package.

Related Solutions

[Tex/LaTex] How to have a figure with multiple groups of image and each image with individual name

Two options:

Using some tabulars for each layer and the subcaption package:

The code:

\documentclass{article}
\usepackage{subcaption}
\usepackage{graphicx}

\begin{document}

\begin{figure}
\begin{minipage}{\linewidth}
  \centering
  \begin{tabular}{ccc}
  \includegraphics[width=.28\linewidth,height=1cm]{example-image-a}
    & \includegraphics[width=.28\linewidth,height=1cm]{example-image-b}
    & \includegraphics[width=.28\linewidth,height=1cm]{example-image-c} \\
  First image & Second image & Third image \\  
  \includegraphics[width=.28\linewidth,height=1cm]{example-image-a}
    & \includegraphics[width=.28\linewidth,height=1cm]{example-image-b} \\
  Fourth image & Fifth image &
  \end{tabular}
  \subcaption{First layer}
  \end{minipage}\par\bigskip
  \begin{minipage}{\linewidth}
  \centering
  \begin{tabular}{ccc}
  \includegraphics[width=.28\linewidth,height=1cm]{example-image-a}
    & \includegraphics[width=.28\linewidth,height=1cm]{example-image-b}
    & \includegraphics[width=.28\linewidth,height=1cm]{example-image-c} \\
  First image & Second image & Third image \\  
  \end{tabular}
  \subcaption{Second layer}
  \end{minipage}
\caption{a figure with some layers of subfigures each with its own name and each layer with a subcaption}
\end{figure}

\end{document}

Above I used a standard tabular with three c type columns; if the text below the images should span more than one line, you could use tabularx from the tabularx package and centered X columns, as the option below illustrates.

Since the OP is using subfig, the subcaption package cannot be used; here's an approach using the same idea as before, but with tabularx and the subfig package:

\documentclass{article}
\usepackage[caption=false]{subfig}
\usepackage{graphicx}
\usepackage{tabularx}

\newcolumntype{Y}{>{\centering\arraybackslash}X}

\begin{document}

\begin{figure}
\subfloat[First layer]{%
\begin{minipage}{\linewidth}
  \centering
  \begin{tabularx}{\linewidth}{YYY}
  \includegraphics[width=\linewidth,height=1cm]{example-image-a}
    & \includegraphics[width=\linewidth,height=1cm]{example-image-b}
    & \includegraphics[width=\linewidth,height=1cm]{example-image-c} \\
  First image & Second image & Third image \\  
  \includegraphics[width=\linewidth,height=1cm]{example-image-a}
    & \includegraphics[width=\linewidth,height=1cm]{example-image-b} \\
  Fourth image & Fifth image &
  \end{tabularx}
  \end{minipage}}\par\medskip
\subfloat[Second layer]{%
  \begin{minipage}{\linewidth}
  \centering
  \begin{tabularx}{\linewidth}{YYY}
  \includegraphics[width=\linewidth,height=1cm]{example-image-a}
    & \includegraphics[width=\linewidth,height=1cm]{example-image-b}
    & \includegraphics[width=\linewidth,height=1cm]{example-image-c} \\
  First image & Second image & Third image \\  
  \end{tabularx}
  \end{minipage}}
\caption{a figure with some layers of subfigures each with its own name and each layer with a subcaption}
\end{figure}

\end{document}

[Tex/LaTex] Is it possible to add subtitles of a figure which contains subfigures

My suggestion would be to clip the image contents within LaTeX; graphicx allows for that:

\documentclass{article}

\usepackage{graphicx,subcaption}

\begin{document}

\begin{figure}
  \centering
  \setbox1=\hbox{\includegraphics{example-image-a}}%
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.5\wd1 0 \wd1 \ht1,clip]{example-image-a}}%
  \qquad
  \setbox1=\hbox{\includegraphics{example-image-b}}%
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=0 0 .5\wd1 \ht1,clip]{example-image-b}}
  \caption{This is main figure}
\end{figure}

\end{document}

I've used example-image-a and example-image-b (from mwe) above, although you will use the same image. As such, you'll only need to capture the image in box 1 once. Note how the image is split in half (at the .5\wd1 mark) with the viewport and clip combination.

Additionally, I've used subcaption, but you can manage the same with subfig.

Here is an example of breaking up a single image into six equal parts (perhaps synonymous to your situation):

\documentclass{article}

\usepackage{graphicx,subcaption}

\begin{document}

\begin{figure}
  \centering
  \setbox1=\hbox{\includegraphics{example-image}}%
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=0 0 .16667\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.16667\wd1 0 .3333\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.3333\wd1 0 .5\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.5\wd1 0 .66667\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.6667\wd1 0 .8333\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.8333\wd1 0 \wd1 \ht1,clip]{example-image}}%
  \caption{This is main figure}
\end{figure}

\end{document}

Each component is extracted as a sixth of the total width \wd1, one step at a time.

Best Answer

Related Solutions

[Tex/LaTex] How to have a figure with multiple groups of image and each image with individual name

[Tex/LaTex] Is it possible to add subtitles of a figure which contains subfigures

Related Question