创建trackbars在OpenCV Python中滚动大图像。

I am trying to create scrollbars in a window created by OpenCv python. I know that I need to implement the code to handle the scrolling/panning process but I have no idea where to start and I've looked everywhere. It is essential that I create the scrollbars in the OpenCV window instead of using some other GUI window framework. Below is the code I am using to load an image and scale the image(which works). Any help is appreciated. And please don't refer me to the opencv documentation on creating trackbars, I've read it and it doesn't help at all. Thanks!I am trying to create scrollbars in a window cr