用opencv实现了Canny算子进行图像的锐化操作，能通过编写的滑条进行控制Canny算子的内核大小，从而控制锐化程度。-Opencv is used to implement the Canny operator image sharpening operation, can pass the written slider to control the size of the Canny operator kernel, so as to control the degree of shar