Enhancing Gray-Scale Images Using Numpy, Open CV

We often scan papers to convert them into images. We have various tools available online to enhance those images to make them brighter and remove any shading in those images. What if we can do that shading removal manually? We could just load any image as a gray-scale image into our code and obtain a output within seconds without the help of any app.

This can be achieved using basic Numpy manipulations and a few open CV functions. To explain the process the following image is used which is clicked from a phone.