Date_time & Text on Image Open CV

In Computer Vision there are few thing that we have to show on running screen like current date and time or if we want to show text on screen we can do it via Computer Vision.

Why it is important to show information on Screen ?

For example Suppose we are doing a project related to person or face detection then in this scenario on running screen we want to show a person name or information related to person then in that case we can do it via open CV.

Here we can show date and time on Screen.