Intrinsic calibration of a camera in ROS-1

Here's the link to my first blog regarding the calibration of intrinsic parameters of USB Cameras in ROS-1.

Calibration is necessary to match the true values of the camera frame with the real world. Beginners often skip the part of understanding the background of the calibration process.
Hence, this blog will get you covered with the right procedure to calibrate the camera using the right choice of chessboard pattern based on application.

Link- https://reachpranjal19.medium.com/camera-calibration-in-ros-melodic-a0bf4742d636