I want to insert first subfigures with caption in IEEE Access LaTeX by using subfloat but I can't do,
because I think It can be only able to insert after using

Figure(topskip=0pt, botskip=0pt, midskip=0pt){filename}{captionlabel{}}

If I can't write step1 code, step2 code does not working,
How can I solve this problem?

codes

documentclass{ieeeaccess}

usepackage{cite}

usepackage{amsmath,amssymb,amsfonts}

usepackage{algorithmic}

usepackage{graphicx}

usepackage{textcomp}



ifCLASSOPTIONcompsoc

    usepackage[caption=false, font=normalsize, labelfont=sf, textfont=sf]{subfig}

else

usepackage[caption=false, font=footnotesize]{subfig}

fi

begin{document}



%%% problems ...... 

Figure[t!](topskip=0pt, botskip=0pt, midskip=0pt){Fig1_A.eps}

{(a) ${x}^H$, (b) $x^{IVS}$, $(c) x^{FSDD}$, $(d) x^{ENM}$, $(e)     x^{SEG}$. Samples of a cropped full face image and several kinds of sub-images.label{fig:Fig1}}



begin{figure}[t!]

centering

subfloat[]{includegraphics[width=0.5in]{Fig1_A.eps}

label{fig:Fig1_A}}

hfil

subfloat[]{

includegraphics[width=0.5in]{Fig1_B.eps}

label{fig:Fig1_B}}

hfil

subfloat[]{

includegraphics[width=0.5in]{Fig1_C.eps}

label{fig:Fig1_C}}

hfil

subfloat[]{

includegraphics[width=0.5in]{Fig1_D.eps}

label{fig:Fig1_D}}

hfil

subfloat[]{includegraphics[width=0.5in]{Fig1_E.eps}

label{fig:Fig1_E}}

caption{(a) ${x}^H$, (b) $x^{IVS}$, $(c) x^{FSDD}$, $(d) x^{ENM}$, $(e) x^{SEG}$. Samples of a cropped full face image and several kinds of sub-images.}

label{fig:Fig1}

end{figure}



end{document}

I had the same problem. It seems unavoidable.

If you use Figure for a single image you want to show, then you can use subfigure for multiple images later, without problems.

But if there is not Figure anywhere in your code, then you are gonna get log errors about captions in all the typical figure enviroments.

Hope they fix that problem with the template.

Commenting command Figure in the given MWE of the OP results in the following complete error message:

! Undefined control sequence.

@makecaption ...capfont #2strut }ifdim xfigwd 

                                                  >columnwidth setbox @te...

l.40 ...ce image and several kinds of sub-images.}



The control sequence at the end of the top line

of your error message was never def'ed. If you have

You can see that command xfigwd is undefined.

Looking in the code of ieeeaccess.cls you can find

def@@@Figure[#1](#2)[#3]#4#5{%

      setkeys{figkeys}{#2}% Set new keys

      setboxfigboxhbox{includegraphics[#3]{#4}}%

      xdefxfigwd{thewdfigbox}% <=======================================

      ifdimwdfigbox<columnwidth% Columnwidth Figure

        begin{figure}[#1]%

          centering%

          vspace*{5pt}%

          vspace*{fig@topskip}%

I marked the definition of xfigwd with <====== in that original code.

Now if you want to add first an subfloat without Figure you can do this simple dirty hack:

Add the definition before your begin{figure}:

%%% problems ...... 

%Figure[t!](topskip=0pt, botskip=0pt, midskip=0pt){example-image-a}

%{(a) ${x}^H$, (b) $x^{IVS}$, $(c) x^{FSDD}$, $(d) x^{ENM}$, $(e)     x^{SEG}$. Samples of a cropped full face image and several kinds of sub-images.label{fig:Fig1}}

xdefxfigwd{thewdfigbox}% <========================================

begin{figure}[t!]

Please see the following compiling code (please see I used example images from packages MWE instead your eps figures)

documentclass{ieeeaccess}



usepackage{cite}

usepackage{amsmath,amssymb,amsfonts}

usepackage{algorithmic}

usepackage{graphicx}

usepackage{textcomp}



ifCLASSOPTIONcompsoc

    usepackage[caption=false, font=normalsize, labelfont=sf, textfont=sf]{subfig}

else

usepackage[caption=false, font=footnotesize]{subfig}

fi

begin{document}



%%% problems ...... 

%Figure[t!](topskip=0pt, botskip=0pt, midskip=0pt){example-image-a} % <===================

%{(a) ${x}^H$, (b) $x^{IVS}$, $(c) x^{FSDD}$, $(d) x^{ENM}$, $(e)     x^{SEG}$. Samples of a cropped full face image and several kinds of sub-images.label{fig:Fig1}}

xdefxfigwd{thewdfigbox}% <========================================

begin{figure}[t!]

centering

subfloat[]{includegraphics[width=0.5in]{example-image-a}

label{fig:Fig1_A}}

hfil

subfloat[]{

includegraphics[width=0.5in]{example-image-b}

label{fig:Fig1_B}}

hfil

subfloat[]{

includegraphics[width=0.5in]{example-image-c}

label{fig:Fig1_C}}

hfil

subfloat[]{

includegraphics[width=0.5in]{example-image-a}

label{fig:Fig1_D}}

hfil

subfloat[]{includegraphics[width=0.5in]{example-image-b}

label{fig:Fig1_E}}

caption{(a) ${x}^H$, (b) $x^{IVS}$, $(c) x^{FSDD}$, $(d) x^{ENM}$, $(e) x^{SEG}$. Samples of a cropped full face image and several kinds of sub-images.}

label{fig:Fig1}

end{figure}

EOD

end{document}

and its compiling result: