please any help to CHANGE THIS CODE to acquire one gray image per 3 minute

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mangood UK
mangood UK 2013-4-3
hi i have this code that take video and many frame
all what i want is to take one gray image and one frame only avery 3 minute
imaqreset;
obj = videoinput('winvideo',1,'YUY2_640x480');
% triggerconfig(obj,'manual');
set(obj,'FramesPerTrigger',Inf);
set(obj,'ReturnedColorspace','RGB');
obj.FrameGrabInterval = 1;
framesneed = 1;
start(obj);
while(obj.FramesAcquired<=framesneed)
RGB2=getsnapshot(obj);
imshow(RGB2);
pause(3);
end
stop(obj);
delete(obj);

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回答（2 个）

Mahdi
Mahdi 2013-4-3
Change the pause line to pause(180). It reads it in seconds.
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mangood UK
mangood UK 2013-4-3
thier is aproblem
my webcam have high resolution as i think
but in matlab say maximum resolution is only 640*480
how to solve this
can any suggestion
regards

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