Webcam Device ID 1 is in use , how to solve it?

Hy , I want to try it this code: http://www.mathworks.com/matlabcentral/fileexchange/30812-tracking-moving-object?s_tid=srchtitle

But I get error:

Error using videoinput (line 391) winvideo: The device associated with device ID 1 is already in use. A new videoinput object cannot be created for this device while it is in use.

Error in trck_movng_obj (line 2) vid = videoinput('winvideo',1,'YUY2_160X120');

Can somebody tell me how to solve it ? please

[Stella SU]

I have met the same problem,did you fix it?

[Jahid Hassan]

faceing same problem

Answer 1

[Hassan Mehmood Khan]

I was having the same problem. but i was able to solve it. Used the following code:

clc; clear;
close all; objects = imaqfind %find video input objects in memory
delete(objects) %delete a video input object from memory
vid=videoinput('winvideo',2,'MJPG_1280x720'); preview(vid)

now whenever i run the code, it will detect the winvideo input and show the preview.

[ILYAS Muhammad]

Thanx, Br Hassan Khan, I was facing same issue, Ur asn helped me.

RAMZAN Mubarak !

[Árvid Keszthelyi]

U r the boss Hassan!

Short answer:

objects = imaqfind

delete(objects)

[Ahmer Shahid]

its not working in app designer Kindly help Thanks.

[Danial Babar]

Thanks Hassan Mehmood Khan , its working

Answer 2

[Image Analyst]

Make sure nothing else is using it. I'm not sure how to tell what else is using it if you don't already know, like you have your webcam manufacturer's app running, or webex running or whatever.