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 operator method, Prewitt gradient operator method, Sobel operator method, isotropic Sobel operator method　and the corresponding algorithm matlab toolbox comes to achieve results. Digital image processing for beginners want to help a friend.