$$\begin{array}{cc}\hfill & \text{basicExptime}=0.01;\hfill \\ \hfill & \text{src.Exposure}=\text{basicExptime};\%\text{set the exposure time}\hfill \\ \hfill & \text{imageTestExp}=\text{getsnapshot}(\text{vid});\%\text{capture an image}\hfill \\ \hfill & \text{imshow}(\text{imageTestExp},[]);\%\text{show the image in a figure window}\hfill \\ \hfill & \text{overExpNum}=(\text{sum}(\text{imageTestExp}(:)>=255));\%\text{the amount of the over-exposed pixels}\hfill \\ \hfill & \text{disp}([‘\mathtt{Over}\mathtt{exposure}\mathtt{percentage}:’,\text{num}2\text{str}(\text{overExpNum}∕\text{length}(\text{imageTestExp}(:))),‘\%’]);\hfill \end{array}$$