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

OpenCV播放视屏，加入滑条，代码比较简单，播放无卡顿。 网上搜到的方式看的莫名其妙。-OpenCV play screen, add slider, the code is relatively simple, play no Caton. Internet search to see the way somehow.

利用opencv中的dilate和erode函数对图片做膨胀腐蚀以及开运算和闭运算等形态学处理，可以在图片窗口划动滑条调节腐蚀和膨胀的参数。(Using the dilate and erode functions of opencv, we can process the image with some typical morphological processing such as dilate and erode.)