VideoReader in App Designer

10 次查看(过去 30 天)
T.A.S.
T.A.S. 2018-7-11
评论: OCDER 2018-7-12
How do I use VideoReader in app designer to display video on a UIAxes?

回答(1 个)

OCDER
OCDER 2018-7-11
编辑:OCDER 2018-7-12
I'm guessing you're familiar with callbacks in app designer? If not, here's the tutorial.
>> appdesigner.internal.application.openTutorial('BasicCoding')
In the callback function for the button that will read the video image, do something like this:
filename = 'myvideo.mp4';
v = VideoReader(filename);
while hasFrame(v)
imshow(getFrame(v), 'Parent', app.UIAxes);
end
  5 个评论
T.A.S.
T.A.S. 2018-7-12
How do i get it to play multiple frames from the video? its just displaying one for now.
OCDER
OCDER 2018-7-12
You might need to add a drawnow or pause(0.01) after the imshow to be able to see the video. Not sure how to set the frame rate, as that requires a different function called implay, which doesn't seem to be able to control a UIAxes.

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