1. An image processing method, comprising: obtaining an image that includes a ball image and a cone image, wherein the ball image indicates an image of a ball, and the cone image indicates an image of a cone; converting the image to a converted image using a processor, wherein the converted image comprises a converted ball image that looks different from the ball image in the image, and a converted cone image that looks different from the cone image in the image; identifying the converted ball image in the converted image; analyzing the converted ball image to determine a score; and determining a center of the ball image based at least in part on the score; wherein the obtained image also includes a rod image, and the method further comprises using the processor to determine a position of the rod image using an algorithm.