是否可以在 latex beamer 中将带有文本的框放置在图片上？使用 overpic 和 block

Question

\documentclass[aspectratio=169,usenames,dvipsnames]{beamer}
\usepackage{graphicx}
\setbeamercovered{transparent} % Transparente Overlays
\usepackage{amsmath,amssymb,amstext}
\usepackage{pifont}
\usepackage{float}
\usepackage{ngerman}
\usepackage{movie15}
\usepackage{multimedia} 
\usepackage{siunitx}
\usepackage[latin1]{inputenc}
%\usepackage[dvipsnames]{xcolor}
\usepackage{wrapfig}
\mode<beamer>{\setbeamertemplate{blocks}[rounded][shadow=true]}
\usepackage{setspace}
\usepackage[absolute]{overpic}


\begin{frame}{test}
\begin{overpic}[width=\linewidth,tics=10,grid=true]
{intro2.pdf}
\put(0,40){\begin{block}{test1}{
\begin{itemize}
    \item understanding latex 
\end{itemize}
}
\end{block}} \end{overpic}

\end{frame}

Answer 1

欢迎来到 TeX.SE！答案是肯定的（如果您使用 minipage 或类似的东西）。编辑：按照@samcarter 的建议，更新了我的 beamer 版本，并删除了与此不直接相关的软件包。

\documentclass[aspectratio=169,usenames,dvipsnames]{beamer}
\setbeamercovered{transparent} % Transparente Overlays
\usepackage[latin1]{inputenc}
%\usepackage[dvipsnames]{xcolor}
\mode<beamer>{\setbeamertemplate{blocks}[rounded][shadow=true]}
\usepackage[absolute]{overpic}
\begin{document}


\begin{frame}[plain]
\begin{overpic}[width=\linewidth,tics=10,grid=true]
{example-image-duck.pdf}
\put(0,40){\begin{minipage}{5cm}
\begin{block}{test1}{
\begin{itemize}
    \item understanding latex 
\end{itemize}
}
\end{block}
\end{minipage}} 
\end{overpic}
\end{frame}
\end{document}