梯度锐化是图像中最常用的一种方法,使用梯度锐化可以很好的得到图像的边缘和轮廓,便于提取物体特征进而对物体进行识别和分析-Gradient image sharpening is a method most commonly used, the use of gradient sharpening can be a very good image of the edge and contour, and thus facilitate the extraction of objects chara