Extracting frames from webcam !!
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Khaled Al-Faleh
on 26 Mar 2017
Commented: Randhir kumar
on 29 Apr 2017
Hi everyone, I want to extract the frame from my running webcam every 3 second I want to extract the frame and save it into variable to process it later so how I can do it please ?? I did this but not taking picture as running video ..
vid = videoinput('winvideo',2);
set(vid, 'FramesPerTrigger', Inf);
set(vid, 'ReturnedColorspace', 'rgb');
for i=1:10
data = getsnapshot(vid);
figure(i);
imshow(data);
end
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Accepted Answer
Star Strider
on 26 Mar 2017
You are not saving the individual images.
One easy way is to use a cell array:
for i=1:10
data{i} = snapshot(vid);
figure(i);
imshow(data{i});
end
I do not have the Image Acquisition Toolbox, only the Support Package for USB Webcams. This loop worked for me with it.
3 Comments
Star Strider
on 26 Mar 2017
My pleasure.
See the Image Processing Toolbox immovie (link) function for one approach. Also see the links in and at the end of the page for that documentation.
Randhir kumar
on 29 Apr 2017
Khaled Al-Faleh: To save simultaneous picture use the function num2str(obj).
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