Esp 32 cam usage

I have an eye system that moves with a joystick running on an Arduino Uno, I would like to make it work on an esp 32 cam so that the eyes follow a face, the camera is fixed on one of the eyes so the person must be in the center of the image, which library should I use and how to make it work?

I doubt there is a library for that application. Simplistically you just need to notice when the face moves to the left, then move the eyes to the left and similarly for the right.

I would like to use fd_forward.h but it tells me that it cannot find the file even though I have downloaded the folder containing it and put it in arduino/library