18 aligned frames from the automated frame extractor.

18 aligned frames from the automated frame extractor.

I didn't get around to scanning last Summer's prints because I couldn't find a reliable automated process for cutting frames out of the cyanotype scans. I didn't want that to happen again, and I really didn't want to deal with hand aligning thousands of frames, so I wrote software to handle it for me. It was harder than I wanted it to be, but here we are!

I used ArUco markers to keep everything aligned. Four unique markers go on each sheet of nine frames. You make the prints, scan the results, and hand it off to the extractor script to find the markers bring everything into alignment, and cut up the frames.

Thanks to @_eddcarr_ for throwing down the gauntlet. Next thing to figure out will be the non-photographic bits...