we embed watermarks in the original circles. In this way, the synchronization issue for watermark embedding and detecting can be best solved. Simulation results show that this method can resist variety of Geometry Attack, such as rotation, scaling, s

MFC基于最小二乘法检测圆的算法，只能检测单个圆。-MFC-based least squares algorithm for detecting circles, can only detect a single round.

circlr detection is a matlab program for detecting the circles found in the image