Hello,
does anyone know a way to change the properties of a videosource object while the acquisition is running.
vid = videoinput('winvideo', 1, 'RGB24_2592x1944')
set(obj.vid, 'TriggerRepeat', Inf );
triggerconfig(vid,'manual');
start(vid);
...
while (true)
...
trigger(vid);
imag = getdata(vid);
...
set(vid.Source,'Focus',f); <- error; cant edit settings while acquisition is running
...
end
stop(vid);
If i want to change the exposure time or the camera focus, i have to stop the videoinput, change the settings and rerstart it again whicht takes about 2 seconds. When capturing with 10 fps, this is pretty bad...
Right now i have a dirty workaround of opening the videopreview and acquiring the images with getsnapshot.
vid = videoinput('winvideo', 1, 'RGB24_2592x1944')
preview(vid);
...
while (true)
...
imag = getsnapshot(vid);
...
set(vid.Source,'Focus',f); <- this works???
...
end
stoppreview(vid);
When this previewwindow is opened, i am able to change the settings of the videosource object on the fly without stopping the entire thing. Why is that?
And is there another better solution without opening otherwise useless windows?
