算子
函数原型:Laplacian(src, ddepth, dst=None, ksize=None, scale=None, delta=None, borderType=None)
src:图像矩阵...函数原型:Sobel(src, ddepth, dx, dy, dst=None, ksize=None, scale=None, delta=None, borderType=None)
src:图像矩阵..._BGR2GRAY)#将图像转化为灰度图像..._BGR2GRAY)#将图像转化为灰度图像..._BGR2GRAY)#将图像转化为灰度图像