Images not aligning below text

Question

I have some text and I want the images I have inserted to show up below it. However when I try to insert the image it appears to move to the next column, How do I have the image to be position immediately below the last line of text?

\begin{figure}
\begin{center}
\caption{Original Image}
\includegraphics[scale=0.5]{figure/orig.png} 
\end{center}



\begin{center}
\caption{Image Watermarked on the $4^{th}$ plane}
\includegraphics[scale=0.5]{figure/plane_4.png} 
\end{center}
\end{figure}

Answer 1

From data, which you provide, I only can suggest to ad option h to figure environment. If after line, to which follows figure is enough place, figure will stay there, otherwise it will move on top to next column/page.

\begin{figure}[h]% <--- h as here, sometime help !h
    \centering
\caption{Original Image}
    \includegraphics[scale=0.5]{figure/orig.png}

\caption{Image Watermarked on the $4^{th}$ plane}
    \includegraphics[scale=0.5]{figure/plane_4.png}
\end{figure}

Answer 2

I figured out how to do this, I know super late but instead of just [h] use [!h]

\begin{figure}[!h]
    \includegraphics[scale=.75]{q16}
\end{figure}