How do I isolate the backend opencv functionality?

[iamvc7]

I have no web dev experience, I would like to use the backend code. Can you please help?

Thanks!

[latsic]

There is no backend here, so I guess you asking about the custom OpenCV version used. This would be here:
https://github.com/latsic/imgalign/tree/master/opencv_src

This code is based on OpenCV 3.4 with added custom functionality. You should be able to build this like any other OpenCV 3.4 version with cmake. Once that is done, you can make use of it for example by including it in your own C++ application.

You can also look here to get some idea about the custom code added to OpenCV.
https://github.com/latsic/imgalign/tree/master/opencv_src/modules/features2d/src/img_align and https://github.com/latsic/imgalign/blob/master/opencv_src/modules/features2d/include/opencv2/features2d.hpp

[iamvc7]

Thank you! :)