Convert Videos to JPG

Convert recorded lecture to jpg so that I can import to powerpoint.

For some of the recorded lectures, I plan to save the video frames and import them to ppt for my future reference. However, if you convert all the frames from the video to image files, a lot of these image files tend to be repetitive.

The purpose of this m file is to convert the video to image files that are non-repetitive. Afterwards, I can import them directly to my powerpoint for reference.