[Tex/LaTex] Background image for frame title

Question

Using beamer, how can I insert a background image under the title of each frame?
I could insert an image but the result was that the title disappeared because the image is over it.
Any ideas?

Answer 1

You can use the \addtobeamertemplate command to add the image to every frame in which the \frametitle command is used. You only add the image to the frametitle template. A simple example using the textpos package to control the placement of the image:

\documentclass{beamer}
\usepackage{textpos}

\addtobeamertemplate{frametitle}{
\begin{textblock*}{\paperwidth}(-10pt,0pt)
\includegraphics[width=.9\paperwidth,height=1cm]{onebit_29}
\end{textblock*}
}

\begin{document}

\begin{frame}
\frametitle{Some long title to overlap the included image}
Test
\end{frame}

\end{document}