code to read image from webcam

hai frnds!!

i'm naveen.. i'm doing a face recognition project as major final year project in b.tech,i've been using the following code to acquire image through webcam but it shows a blank image in output...can any one help me? thanks

the code is:

vid = videoinput('winvideo');
preview(vid);
start(vid); 
im=getdata(vid); % im = getsnapshot(vid); alternative use
figure,imshow(im);

plz suggest coorect code..

[Partha Ghosh]

 im=getdata(vid);

When you do this it returns you a set of images in my case 10 RGB images hence you should use

imshow(im(:,:,:,i))

where I is the index of the image

Answer 1

[Image Analyst]

Can you see the image when you use imaqtool?