Is it possible to do Stereo Rectification between Depth Map and External Camera?

[NP6]

I currently have the D415 depth sensor and I want to create a setup with an external camera. However, I'm trying to align the two images, and looking at attempting stereo calibration. While this would be easy to do with the RGB camera in the D415 with the external camera, I'm not sure if this transformation can be applied to the depth sensor. I'm wondering if anyone might have any advice or if anyone has attempted this before.

Thanks!

[MartyG]

The link below discusses aligning the depth frames of the RealSense camera with the color frames of a non-RealSense external camera.

https://github.com/IntelRealSense/librealsense/issues/4202

[NP6]

Hey MartyG,

Thanks for sending that link my way. I'm not too sure I understand the example. I am trying to align a pair of images (it does not need to be a stream) using Python and I don't see an example of the post-processing spatial alignment using software-device in the librealsense example page. I might just be missing it but any help is appreciated!