I’ve been using photoshop to do this.
Imagemagick is a lot easier.
magick convert +append leftimage.jpg rightimage.jpg leftrightimage.jpg
1 Like
I recommend Stereo photo maker:
https://stereo.jpn.org/eng/stphmkr/index.html
It works excellent, I check my tweaks and alignment fixes in VR. (Virtual Desktop app needed, full screen mode on stereo photo maker)
2 Likes