No, it's not possible to adjust that through the libraries that are being used unfortunately, at least not easily. Having said that, I'm just feeding images from the camera into the library at a very fast rate, so in theory, I could always perform processing on the image before it's fed into the library, such as cropping the image to only a certain area of the video feed. I don't have a UI set up to drive any of that, or any of the code that would be needed to save that information, or code that would have to deal with the device orientation changing and all sorts of other potential problems if I'm mucking with the image that is captured.
Mike
Mike