How do I extract individual frames while taking video input from a webcam?
Here's a snippet of the program for Fall Detection which analyses a video clip frame-by-frame : while ~isDone(vid) % vid = vision.VideoFileReader(vidname); where vidname is the filename of the video clip pause(0.0001); frame = step(vid); frameNo = frameNo+1; How do I edit it so that instead of a video clip the input is taken from my webcam?
Prashant Kumar answered .
2025-11-20
You just need to create a VideoDevice System object (say vidobj) and replace vid with vidobj :
% Construct a VideoDevice System object associated with the Winvideo adaptor with device ID of 1.
vidobj = imaq.VideoDevice('winvideo', 1);
while true % The program will run as long as the webcam is on.
pause(0.0001);
frame = step(vidobj);
frameNo = frameNo+1;