How to extract a frame every 10 s from the video ?

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muhammad choudhry
muhammad choudhry 2021-4-21
评论： Image Analyst 2022-12-23
Hi,
I have a video which runs for 30 minutes at the rate of 60 fps. I need to extract the frame every 10 second. For example: 10s(600th frame),20s(1200th frame),30s(1800th frame) so on..... I looked through the internet I can get the info about how to read, write video and extract frame but did not get the info about exactly what I am looking for. Your help will be appreciated!
Thanks

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Stephan
Stephan 2021-4-21
编辑：Stephan 2021-4-21
https://de.mathworks.com/help/matlab/ref/videoreader.read.html#busxibt-2
In your case the interval to take the first frame after 10 seconds would be:
v = VideoReader('YOUR_FILENAME.mp4');
frames = read(v,[600:600:end]);
The result is a 4D-Array which is the first 3 dimensions having the video frame and the 4th dimension is the time - here 10 seconds
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B Sarath
B Sarath 2022-12-23
Sir could you please help me the writing the code for to divide video into frames for every 2 seconds.The file properties are length:1:46 Frame rate: 29.92 fs Storage:16.7mb
Image Analyst
Image Analyst 2022-12-23
I don't know what this means. Do you want to split up a single video into multiple videos, each having a run time of 2 seconds? Do you want to take the frames for each 2 second long segment and write them out to a folder (with a name that is the start time of that segment)?

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