I use the UserDefinedTarget technology and I want to do something which is particular..
I want to take a photo and then crop it to have a piece of the photo as ImageTarget.. I don't know if it possible or not but il will be very practical..
As you can see on the ScreenShot, I just want to have the part of the image which is in the white rectangle.. but I really don't know how to do that..
If somenone can help or advise me ?