How to acquire video from matlab in real time and convert to frames

To get the information about devices

info=imaqhwinfo

info.InstalledAdaptors

info = imaqhwinfo('winvideo')

dev_info = imaqhwinfo('winvideo', 1)

info.DeviceInfo

info.DeviceInfo.SupportedFormats

%celldisp(dev_info.SupportedFormats);

imaqtool

How to acquire video from matlab in real time

vid=videoinput('winvideo',1);

preview(vid);

start(vid);

% foto=getsnapshot(vid);

%image(foto);

im=getdata(vid,1);figure,imshow(im);

imwrite(im,'testimage.jpg');

• imaqhwinfo gives information about the existing adaptors for your webcam device
• winvideo is one of the adaptors.
• Further information pertaining to the device can be obtained by imaqhwinfo('winvideo',1) where 1 is the Device ID you saw earlier
• The resolution (800×600, 1024×768, 1600×1200, etc.), format (RGB, YUV, etc.) which needs to be selected when creating a video object.
• create a videoinput object
  ->vidobj = videoinput('winvideo',1,'RGB_1024x768');
• to start your video object start(vidobj)
• You can obtain snapshots of capture by using the frame = getsnapshot(vidobj)
• view the continuous stream of frames by saying preview(vidobj);
• A stop(vidobj) followed by delete(vidobj) is the best way to follow.
• All the options can be seen by imaqhelp(videoinput).