How to preview live video in App Designer using videoinput and preview?

I am trying to capture live feed from a camera in App Designer. At the command window I can use "videoinput" and preview to do this, but it's not working in my app. How do I do this?

vid = videoinput('winvideo',1);
preview(vid)

Answer 1

[MathWorks Support Team]

In order to preview the video in your uiaxes, you can create an image and preview the video on that image:

% Image acquisition
vid = videoinput('winvideo',1);

% Create blank image
hImage = image(app.UIAxes,zeros(720,1280,3)); %If image resolution is 1280x720
pause(2)

% These lines set proper aspect ratio
app.UIAxes.XLim = [0,1280];
app.UIAxes.YLim = [0,720];
app.UIAxes.XTick = [];
app.UIAxes.YTick = [];
pbaspect(app.UIAxes,[1280,720,1])

% Preview the image
preview(vid,hImage)