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

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

Answer 1

[Stephen]

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 );

[mahendra kumar]

Sir, how to increase resolution of the video screen

[Walter Roberson]

Change the 'YUY2_640x480' to a higher number supported by your camera.

[mahendra kumar]

sir, how to capture the frames after every 15 sec;

[Walter Roberson]

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]

thank u so much sir, ur code worked perfectly for my project:-):-):-)

[mahendra kumar]

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]

seems that you can get some hints from the moving-detection code,which is easy to be found on the internet