[Tex/LaTex] How to remove figure caption prefix “figure” in beamer

beamercaptions

I am trying to remove the caption prefix, "Figure", for my figures in beamer. I tried doing this but it made no difference.

Heres a minimum working example:
As you can see, I have included the caption package.

\documentclass{beamer}

\usepackage{graphicx}
\usepackage{subfigure}
\usepackage{subfig}
\usepackage{epstopdf}
\usepackage{hyperref}
\usepackage{amsmath}
\usepackage[labelformat=empty]{caption}
\usepackage{setspace}
\usepackage[T1]{fontenc}
\usepackage[super,numbers,sort&compress]{natbib}
\usepackage[labelformat=empty]{caption}

% \usepackage{makeidx}
% \usepackage{sidecap}

\setbeamertemplate{footline}[page number]
%\setbeamercolor{structure}{bg=yellow, fg=black}
\usetheme{CambridgeUS}


\logo{%
\includegraphics[scale=0.25]{logo1}%
\hspace{\dimexpr\paperwidth-4cm}
\includegraphics[height=1cm]{logo2}%
}%


\begin{document}


\title[PT]{Presentation Title}
\author[Author1]{List of Authors}
\institute[Univ]{University Name}

\begin{frame} % Cover slide
\titlepage
\end{frame}



\frame{
\frametitle{Evaporating liquid film, G=0.0, S=100, M=35.1, Pr=7.02, E=0.0001, R=0}


\begin{figure}
 \begin{center}
   \includegraphics[scale=0.21]{/home/userid/Research/Dissertation/wigner/montage_evap/Evap_zg_2wl}
    \caption{Wavenumber k=2}
 \end{center}
\end{figure}



}

Best Answer

Renew caption template

\documentclass{beamer}


\begin{document}
\setbeamertemplate{caption}{\raggedright\insertcaption\par}

\frame{
\begin{figure}
\rule{5cm}{5cm}
\caption{Test}
\end{figure}
}

\end{document}

No need to load any other packages. You may even add some fancy stuff like a 

\setbeamertemplate{caption}{%
\begin{beamercolorbox}[wd=.5\paperwidth, sep=.2ex]{block body}\insertcaption%
\end{beamercolorbox}%
}

Which basically gives you a colored box around the caption (when a color-theme is used).

You can use :

\setbeamertemplate{caption}[default]

if you want to switch back the parameter to its default value, for example if you want the change to be only local.

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