problem with object tracking vi

[AlyMagdy]

hi every body 
i'm trying to use the camera to track any object selected on the screen in real time .
i didit with pattern matching and i wanna make it with object tracking vi, but i'm facing a problem with ROI and object detection 
any help please !?

[mikeporter]

What is the problem you are having? You need to provide details if we are going to be able to help.

Mike...

[SanthoshJoel]

what is the problem u r facing with those vi's ,,...share the screen shot of the issue or exp it in detail

[AlyMagdy]

when run the program an error apperes says no object to detect i creat a ROI to determine the object but another error says invalid ROI
here are the screen shots

[mikeporter]

Well, if the image on the screen is the one you are trying to process, I would say right off hand that the first problem is that the contrast is way, way to low.

Mike..

[AlyMagdy]

no the program stops before the camera works so every time  i trying to run i get the error and camera stop working efore the streaming begin  

[SanthoshJoel]

good... can u mention what type of camera you are using (camera model) and also tell me whether u have verified the working of the camera in NI MAX...

[AlyMagdy]

i'm using HP -HD usb cam.
what do you mean of camera verification ?

the camera works great with pattern matching , so i don't think there is a need to verify , the main problem with the internal structure of program as  mentioned in the post .