用Canny算子检测图像的边缘 P0404：图像的阈值分割 P0405：用水线阈值法分割图像 P0406：对矩阵进行四叉树分解 P0407：将图像分为文字和非文字的两个类别 P0408：形态学梯度检测二值图像的边缘 P0409：形态学实例——从PCB图像中删除所有电流线，仅保留芯片对象-with Canny operator to detect the edges in the image P0404 : image thresholding segmentation P0405 : water

用matlab做的手势识别 基于梯度方向直方图特征提取 欧氏距离判断-Gesture recognition with matlab do the gradient direction histogram feature extraction based on Euclidean distance to determine

此程序实现对一副图像的LOG梯度边缘检测方法-This procedure to achieve an image of the gradient edge detection method LOG

compute gradient for equationgdg