How can I edit a camera calibration .mat file?

I have to reconstruct 3-D locations of undistorted matching points in stereo images; I need the .mat file containing the calibration parameters but unfortunately I dont' have the possibility to calibrate the camera. So, I would like to enter the approximate parameters contained in the XIF file of the images into an existing .mat file.

How can I edit a .mat file entering my own parameters?

Answer 1

[Matt J]

If you already plan to use approximate parameters, why not just create a stereoParameters object directly?

https://www.mathworks.com/help/vision/ref/stereoparameters.html