图像边缘检测(Canny 算法)的Java实现

Canny边缘检测算法

step1:用高斯滤波器平滑图象；

step2:用一阶偏导的有限差分来计算梯度的幅值和方向；

step3:对梯度幅值进行非极大值抑制；

step4:用双阈值算法检测和连接边缘

-Edge Detection (Canny algorithm) to the Java Canny edge detection algorithm ste p1 : Gaussian smoothing filter image; step2 : with a partial derivative of the finite difference to calculate the gradient amplitude and direction; step3 : gradient amplitude of the non-maximum inhibition; step4 : dual-threshold algorithm for edge detection and link