How to capture frames after each 5 seconds from live stream and save as image in a folder ??

Question

saeeda saher 2019-1-28

0
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https://ww2.mathworks.cn/matlabcentral/answers/441811-how-to-capture-frames-after-each-5-seconds-from-live-stream-and-save-as-image-in-a-folder

回答： Balakrishnan Rajan 2019-1-30

I am trying to save frames from live stream after each 5 seconds duration and save the frames as an image into the folder. Kindly tell me how to define the n number of frames of live stream cam here?

Please help me to solve this problem.

 Folder = 'OUTPUT\';
vid = videoinput('winvideo', 1);
     
   % wait for 5 seconds
    
 for iframe = 1
  frames = getsnapshot(vid);
   pause(5);
  imwrite(frames, fullfile(Folder, sprintf('%06d.jpg', iframe)));
end 

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Answer 1

Balakrishnan Rajan 2019-1-30

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https://ww2.mathworks.cn/matlabcentral/answers/441811-how-to-capture-frames-after-each-5-seconds-from-live-stream-and-save-as-image-in-a-folder#answer_358653

在 MATLAB Online 中打开

You can use a while loop here.

Folder = 'OUTPUT\';
vid = videoinput('winvideo', 1);
     
   % wait for 5 seconds
    
while true
  frames = getsnapshot(vid);
  pause(5);
  imwrite(frames, fullfile(Folder, sprintf('%06d.jpg', iframe)));
  iframe = iframe + 1;
end 