将一副圆形图片（如全景图像）通过霍夫圆变换找到圆心，再进行分割，由于坐标的对称性，便于对图像进行下一步处理。-Will be a circular image (such as panoramic images) through the Huff circle transform to find the center, and then split, due to the symmetry of the coordinates, easy to image the next step.