Hopefully, my question describes what I need. I want to add small colored box contains text or equation describing a picture in a presentation, I want the picture to come first, then the box, which may appear on one corner of the picture or just a above the picture. I found some stuff here, but not what I need now. Further more, I'm using two pictures on the side, so, I want to show the left picture first followed by the text box, then the other one, followed by another text box. I tried use another caption above the picture, but doesn't look good. This my code, I'm trying:
\documentclass[10pt]{beamer}
\usepackage{beamerthemeWarsaw}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{epsfig}
\usepackage{epstopdf}
\begin{document}
\begin{frame}{Robot Simulation}
\begin{columns}[c]
\column{2in} % slides are 3in high by 5in wide
\begin{figure}[!h]
\centering
\caption{$\theta = \begin{bmatrix} 0 & 0 & 0 & 0 \end{bmatrix} $}
\includegraphics[scale=0.4]{Picture 1}
\caption{Home position}
\label{Home_Position}
\end{figure}
\column{2in}
\begin{figure}[!h]
\centering
\includegraphics[scale=0.4]{Picture 2}
\caption{Upright position}
\label{Up_right}
\end{figure}
\end{columns}
\end{frame}
\end{document}

tcolorboxcommand, the caption below the picture, disappeared, how can I locate, the box on top of the picture, right corner? – AlFagera May 01 '15 at 13:35\begin{frame}[t]to put the contents little up. – May 01 '15 at 14:55\begin{frame}[t], I could show you my case, but I don't know really how to insert an active slide, as you did. I think we don't need to use@, since we're alone. Thanks you a did a good job, I'll vote up anyway, and I'll see. – AlFagera May 01 '15 at 15:40