Convert Video to lower quality file

I would like to convert a videofile to a lower quality format. Would VideoWriter() work? Would I use VideoReader() first to point to the correct file, then use VideoReader() to write it in a different quality?

Answer 1

[Benjamin Thompson]

You use VideoWriter to write out to an output video, like in this example:

https://www.mathworks.com/help/matlab/import_export/convert-between-image-sequences-and-video.html

VideoWriter accepts parameters to change the output file type and other qualify parameters.

Answer 2

[Image Analyst]

See attached demo where I change the pixel resolution of the displayed video and save it as a new, lower resolution video.