光伏航拍红外图像的热斑自动检测方法

夏杰锋,唐武勤,杨强

Automatic hot spot detection method for photovoltaic aerial infrared image

Jie-feng XIA,Wu-qin TANG,Qiang YANG

图 3 Canny算法梯度方向与边缘方向关系

Fig.3 Relationship between gradient direction and edge direction of Canny algorithm