This shows randomly selected pages from an underlying interleaved background image by changing that background's position by one pixel randomly relative to a foreground "grille" image that masks out 89% of the background. It probably won't work if your browser's zoom is set to anything other than 100%.

What do we learn from this? Well, the "opacity holograms" I theorized about some years back do not imply such a loss of contrast or resolution as to be fatal to readability, at least for an image encoding only 9 pages. I'm optimistic about scaling up to 49, at which point you can get effective 86dpi for each virtual page at 600dpi physical.

It doesn't tell us anything about printer imperfections, usable viewing angles of transparency film, difficulty of alignment and performance in the face of imperfect alignment, and so on.