1. A method for autonomously aligning a hitch tow ball attached to a back of a towing vehicle with a drawbar attached to a trailer, said method comprising: providing rearview images from a rearview camera on the vehicle that show the tow ball and the drawbar; displaying the images on a touch screen display; touching the tow ball on the display to register a position of the tow ball in the image; touching the drawbar on the display to register a position of a target where the tow ball will be aligned with the drawbar; providing, by a controller including a processor and memory, a template pattern around the registered target in the image; autonomously moving the vehicle, by the controller, so that the tow ball moves towards the target; predicting, by the controller, a position of the target in new images as the vehicle moves; estimating, by the controller, a new location of the target in the new images as the vehicle moves by comparing the template pattern with an image patch window provided around the predicted position of the target; determining, by the controller, a distance between the tow ball and the new location of the target; and stopping the vehicle, by the controller, when the distance between the tow ball and the new location of the target is less than a predetermined threshold.