Convert Video to lower quality file

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LabRat
LabRat 2022-8-15
回答： Image Analyst 2022-8-15
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?

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回答（2 个）

Benjamin Thompson
Benjamin Thompson 2022-8-15
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.
Image Analyst
Image Analyst 2022-8-15
See attached demo where I change the pixel resolution of the displayed video and save it as a new, lower resolution video.

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