Class for video capturing from video files or cameras

The class provides an API for capturing video from cameras or for reading video files and image sequences.

Example

Here is how the class can be used:

cap = cv.VideoCapture(0);        % open the default camera
pause(3);                        % see note below
if ~cap.isOpened()               % check if we succeeded
    error('camera failed to initialized');
end
for t=1:30
   frame = cap.read();           % get a new frame from camera
   imshow(frame);
   pause(0.1);
end
% the camera will be deinitialized automatically in destructor
% when "cap" goes out of scope

Note

In some environments, there is a concurrency issue during camera initialization. To avoid unexpected crash, pause for a few seconds after the initialization of cv.VideoCapture object.