中文说明：本程序是多种锐化方法，实现了laplace算子、sobel算子、caany算子、prewitt算子等不同的锐化操作。可操作性强，很实用。代码简单，效果良好。图像锐化是图像预处理的基本操作，对于边缘提取以及hough变换有一定的帮助作用。
English Description：
This procedure is a variety of sharpening method, to achieve the Laplace operator, Sobel operator, caany operator, Prewitt operator, such as different sharpening operation. Operability is strong, very practical. The code is simple, the effect is good. Image sharpening is the basic operation of image preprocessing, for edge extraction and Hough transform has a certain help.