标题周围有边框，但图形周围没有边框

Question

我想为我的figures和的标题添加边框/方框tables，但又不想为图形/表格本身添加边框。我目前有办法，但方框占据了整个文本宽度，我找不到让它适合标题宽度的方法（由于包的原因，标题宽度是恒定的caption）。

我怎样才能减小框架的宽度以使其适合标题？

梅威瑟：

\documentclass[12pt]{article}
\usepackage[demo]{graphicx}

\usepackage{framed}
\usepackage{caption}
\captionsetup{width=0.45\textwidth}

\begin{document}

\begin{figure}[ht!]
  \centering
  \includegraphics[width=0.5\textwidth]{image.png}
  \begin{framed}
    \caption{
        Here is a reasonably long caption that will be at least two lines, around which I would like a box
    }
    \label{some-image}
  \end{framed}
\end{figure}

\end{document}

Answer 1

这使用该tcolorbox包及其许多选项来生成一个框架标题，尽管在我看来这看起来有点奇怪。

\documentclass[12pt]{article}
\usepackage[demo]{graphicx}

\usepackage{caption}
\usepackage{tcolorbox}
\captionsetup{width=0.45\textwidth}

\begin{document}

\begin{figure}[ht!]
  \centering
  \includegraphics[width=0.5\textwidth]{image.png}
     \begin{tcolorbox}[left=0mm,right=0mm,width=0.5\textwidth,bottom=0mm,top=0mm,arc=0mm,auto outer arc]
    \caption{%
      Here is a reasonably long caption that will be at least two lines, around which I would like a box
    }%
    \label{some-image}%
    \end{tcolorbox}
\end{figure}

\end{document}