@cogdog I used to use a processing script to slitscan videos occasionally. The one I have is broken and beyond me. To I just cropped out a centre strip from all the stills with sips and montages them together with imagemagick need to test with a video. I think you could export to images with ffmpeg and scan across the results with sips then montage. Doubtless there are better ways, but I think I could understand and carry that out...