Introduction - If you have any usage issues, please Google them yourself
The algorithm is based on pixel art consists of several elements approximation circular template for each pixel of the image based on gray corner of the template field value response function (CRF), if greater than a threshold and a local maximum value, the point is that the corner. Regardless of the precision of the circular template size corner, the greater circular template, the more points detection angle, the greater the amount of computation, this paper circular template contains 37 elements, the nearly circular template