Camera Calibration Assistance Needed

[MAli-Haider]

Calibration Target:

• Checkerboard with 9x6 inner corners.
• Square size: 25mm x 25mm.

Environment:

• Images taken at different angles and distances.
• Uniform lighting with minimal shadows or glare.

Issue:
I need help with calibrating the camera for intrinsic matrix and distortion coefficients. Currently, I do not have calibration images with a checkerboard pattern.

Request:
Could we be provided guidance on how to proceed or if pre-calibrated values are available?