ABSTRACT
Camera-related factors like the position, orientation, focal length, and others affect the image. These factors can be divided into two types: internal and external (intrinsic and extrinsic). Internal or intrinsic parameters include focal length and distortion by lens whereas external or extrinsic parameters include rotation and translation vectors. Now the procedure for determining these camera parameters is called calibrating the camera. Camera calibration is essential for applications like removing distortion from an image, for photogrammetric or finding the location of the camera in a scene. This chapter intends to explain the process and mathematics behind calibration of a digital camera using OpenCV in Python.
