从会议论文转换为论文时未定义的控制序列

Question

我正在尝试将此（之前在 ACM MM 会议论文中工作）放入我的论文中。我不确定如何修复此错误：

\begin{figure}[t]
\centering
\captionsetup[subfigure]{labelformat=empty}
   \subfloat[ \label{fig:PKR}]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/nonfood/1798839913309241231.jpg}}
\hspace{.5em}
   \subfloat[\label{fig:PKT} ]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/nonfood/1802196180958251139_1.jpg}}
\hspace{.5em}
   \subfloat[\label{fig:tie5}]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/nonfood/1779651030105353949.jpg}}
\hspace{.5em} 
    \subfloat[\label{fig:PKR}]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/nonfood/1778498672250657472_8.jpg}}\\
\vspace*{-.3cm}
      \subfloat[ \label{fig:PKR}]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/food/1979635016158043221.jpg}}
\hspace{.5em}
   \subfloat[ \label{fig:PKT} ]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/food/1719645603783530760.jpg}}
\hspace{.5em}
   \subfloat[ \label{fig:tie5}]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/food/1705109660573689268_2.jpg}}
\hspace{.5em}
    \subfloat[\label{fig:PKR}]{%
      \includegraphics[width=1.8cm, height=1.8cm]{figures/food/1689999632951126918_2.jpg}}
      \vspace*{-0.3cm}
\caption{Images correctly classified by KenyanFC but misclassified by ResNeXt101 when trained on FCD and tested on our Kenya104K. Images in the first row are non-food images misclassified as food images; images in the second row are food images misclassified as non-food images.}
    \label{fig:fnf_failure}
        \vspace*{-0.2cm}
\end{figure}

图像如下所示：

虽然它们应该显示为：

以下是已发表论文的链接：https://dl.acm.org/doi/10.1145/3347448.3357170

请注意，我的论文是单栏的，而会议论文是双栏的。

Answer 1

这subfig包裹在您的序言中缺失。但是，如果您的意图是输出只是一个图片数组，而不显示任何单独图片的编号，那么您只需tabular在 中使用结构即可figure。使用\label没有任何意义，因为没有编号可供参考。

\documentclass{article}

\usepackage{graphicx}

\begin{document}

\begin{figure}[t]
  \centering
  \begin{tabular}{ *{4}{c} }
    \includegraphics[width=1.8cm, height=1.8cm]{example-image} &
      \includegraphics[width=1.8cm, height=1.8cm]{example-image-a} &
      \includegraphics[width=1.8cm, height=1.8cm]{example-image-b} &
      \includegraphics[width=1.8cm, height=1.8cm]{example-image-c}
    \\
    \includegraphics[width=1.8cm, height=1.8cm]{example-image-c} &
      \includegraphics[width=1.8cm, height=1.8cm]{example-image-b} &
      \includegraphics[width=1.8cm, height=1.8cm]{example-image-a} &
      \includegraphics[width=1.8cm, height=1.8cm]{example-image}
  \end{tabular}
  \caption{Images correctly classified by KenyanFC but misclassified by ResNeXt101 when trained 
  on FCD and tested on our Kenya104K. Images in the first row are non-food images misclassified 
  as food images; images in the second row are food images misclassified as non-food images.}
\end{figure}

\end{document}

行和列之间的间距可以根据需要进行调整。

Answer 2

类似这样的吗？（我没有 MWE 和您的图片）：试试看。如果您想减少数字之间的间距，请查看 的值\hspace{1em}。

\documentclass[12pt]{article}
\usepackage{subfig}
\usepackage{graphicx}
\captionsetup[subfigure]{labelformat=empty}
\captionsetup[figure]{labelfont=bf}
\begin{document}
\begin{figure}
\centering
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-c}}\hspace{1em}
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-b}}\hspace{1em}
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-a}}\hspace{1em}
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-c}} 

\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-b}}\hspace{1em}   
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-b}}\hspace{1em}
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-c}}\hspace{1em} 
\subfloat[]{\includegraphics[width=1.8cm,height=1.8cm]{example-image-c}}

\caption{Images correctly classified by KenyanFC but misclassified by ResNeXt101 when trained on FCD and tested on our Kenya104K. Images in the first row are non-food images misclassified as food images; images in the second row are food images misclassified as non-food images.}
\label{fig:fnf_failure}
\end{figure}
\end{document}

Answer 3

作为@Sebastiano 答案的补充(+1)......

您还可以使用subcaption软件包版本 1.3（或最新版本）和Gin更短图形代码的键：

\documentclass[12pt]{article}
\usepackage{subcaption}
\usepackage{graphicx}
\captionsetup[figure]{font=small, labelfont=bf}

\begin{document}
    \begin{figure}
    \captionsetup[subfigure]{labelformat=empty}
    \setkeys{Gin}{width=1.8cm,height=1.8cm}
    \centering
\subfloat[]{\includegraphics{example-image-c}}\hspace{1em}
\subfloat[]{\includegraphics{example-image-b}}\hspace{1em}
\subfloat[]{\includegraphics{example-image-a}}\hspace{1em}
\subfloat[]{\includegraphics{example-image-c}}

\subfloat[]{\includegraphics{example-image-b}}\hspace{1em}
\subfloat[]{\includegraphics{example-image-b}}\hspace{1em}
\subfloat[]{\includegraphics{example-image-c}}\hspace{1em}
\subfloat[]{\includegraphics{example-image-c}}

\caption{Images correctly classified by KenyanFC but misclassified by ResNeXt101 when trained on FCD and tested on our Kenya104K. Images in the first row are non-food images misclassified as food images; images in the second row are food images misclassified as non-food images.}
\label{fig:fnf_failure}
    \end{figure}
\end{document}