how to make a live video from webcam to appear on the fig file which i have created

2012 5 4
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Stephen
Stephen 2012-5-4

0 个投票

You may try these.
clear all;
imaqmem(80000000) ;
aviobj = avifile('myavifile6');
aviobj.quality = 100;
vid = videoinput('winvideo',1,'YUY2_640x480');
set(vid,'returnedcolorspace','rgb');
set(vid,'framespertrigger',inf);
set(vid,'timerperiod',1);
set(vid,'timeout',500);
set(vid, 'DiskLogger',aviobj);
set(vid,'loggingmode','disk');
vidRes = get(vid, 'VideoResolution');
nBands = get(vid, 'NumberOfBands');
subplot(1,2,1);hImage = imshow( zeros(vidRes(2), vidRes(1), nBands),'InitialMagnification',100' );
preview(vid,hImage);
start(vid)
while(1)
frame = getsnapshot(vid);
subplot(1,2,2);imshow(frame,'InitialMagnification',100');
Ha_ax=gca;
str = get(gcf,'currentkey');
if strcmp(str,'space')
break;
else
continue;
end
end
stop(vid);
aviobj =close(aviobj );

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Walter Roberson
Walter Roberson 2012-5-5
Change the 'YUY2_640x480' to a higher number supported by your camera.
Walter Roberson
Walter Roberson 2012-5-5
Put
pause(15)
on the line before getsnapshot()
However, you will need to test this, as it might be the case that the preview pauses as well. If so then you would need a different method.
mahendra kumar
mahendra kumar 2012-5-6
thank u so much sir, ur code worked perfectly for my project:-):-):-)
mahendra kumar
mahendra kumar 2012-5-6
sir, do u know how to draw a bound box on the live video which is been capturing, as i m doing a face detection project, so i need to detect the face in the video and draw a bound box around it..i hav the code to detect the face from the frame, which i capture from the video,but i want to do the face detection on the live video itself.can u plz help me
Stephen
Stephen 2012-5-6
seems that you can get some hints from the moving-detection code,which is easy to be found on the internet

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