自己编的经典边缘检测和锐化算法，包含正交梯度法、Roberts梯度算子法、Prewitt梯度算子法、Sobel算子法、各向同性Sobel算子法；以及matlab自带工具箱相应算法的实现结果。希望对初学数字图像处理的朋友有帮助。-Their own series of classic edge detection and sharpening algorithms, including the orthogonal gradient method, Roberts gradient operato