how to draw an updating rectangle object on a video stream ?
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Hi there,
I am beginninger of matlab. I tried myCameraGUI example which build up a simple camera preview inferface. My question is I cannot find a way to draw a updating rectangle object on the top of streamed video. I do have tried many times, but fail in the end. Does anyone know how to do that? Any direction, webpage, or even a function would be appreciated. Thank you.
Steven
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Accepted Answer
Image Analyst
on 9 Nov 2012
It's possible to have graphics in the overlay above your live video. Did you call the preview() function to get live video, and then call plot() to plot your box?
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Image Analyst
on 9 Nov 2012
You need two x and two y, not one. Try calling line just like this
axes(handles.cameraAxes);
hold on;
line([x1 x2], [y1 y2]);
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