I see that you want to know more about image registration and you are currently using "imregister" function of MATLAB.
Here are some resources which can be useful:
- https://www.mathworks.com/help/images/image-registration.html?s_tid=CRUX_topnav - Image Registration
- https://www.mathworks.com/help/images/ref/imregister.html - "imregister" function documentation
- https://www.mathworks.com/matlabcentral/answers/73537-how-does-imregister-work - Community Discussion on "imregister"
- https://www.mathworks.com/matlabcentral/answers/104483-image-registration-step-by-step - Some more healthy discussion on image registration
I hope this will help!
