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

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mahendra kumar 2012-5-4

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采纳的回答： Stephen

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

采纳的回答

Stephen 2012-5-4

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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 );

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 2012-5-6