yep it’s just like those magic eye pictures that were big in the 90s, once you learn how to see those instantly you can do this trick also
I've acquired a new superpower
291–300 of 583 posts
Re: I've acquired a new superpower
#292Good old vdiff: https://catb.org/jargon/html/V/vdiff.html
Visual diff. The operation of finding differences between two files by eyeball search. The term optical diff has also been reported, and is sometimes more specifically used for the act of superimposing two nearly identical printouts on one another and holding them up to a light to spot differences. Though this method is poor for detecting omissions in the ‘rear’ file, it can also be used with printouts of graphics, a claim few if any diff programs can make. See diff.
An interesting variant of the vdiff technique usable by anyone who has sufficient control over the parallax of their eyeballs (e.g. those who can easily view random-dot stereograms), is to hold up two paper printouts and go cross-eyed to superimpose them. This invokes deep, fast, built-in image comparison wetware (the same machinery responsible for depth perception) and differences stand out almost immediately. This technique is good for finding edits in graphical images, or for comparing an image with a compressed version to spot artifacts.
Re: I've acquired a new superpower
#293To really blow peoples' minds use both hands to tap the differences, keeping the left hand for the left image and the right hand for the right image!
From your POV the images are merged so your hands will look like they're tapping a single image, but from the audience's point of view you look like a savant with multi-attention!
Re: I've acquired a new superpower
#294Jokes on you, my eyes don't work together so I can only see out of one at a time!
There's dozens of us!
Re: I've acquired a new superpower
#295At a local bar they had a game machine, and if you got a high score on any of the games, your tab for the evening was free. One of the games was a "spot the differences" between two pictures with an ever decreasing timer for each round. Using this trick I was able to easily surpass the high score, and garner a crowd watching me perform this mind numbing feat. Probably my peak fame right there.
>Probably my peak fame right there. My son and I always make jokes about everyone's 5 minutes of fame. Some random person on the jumbotron at a sporting event "Yup, there's his moment, it's over now." At least yours got you something ;)
You may or may not be aware that Andy Warhol famously quipped that, "in the future, everyone will be famous for 15 minutes," back in the late 1960s. As media has gotten to be ever more ubiquitous and the cost of entry lower, he was clearly onto something decades before the internet!
Re: I've acquired a new superpower
#296I have a true vision-based super power. my vision is so bad with nearsightedness that when I take corrective lenses off, I can focus on an ipad mini screen within 10" of my face and perceptually it is the same as focusing on a distant movie theater screen. No straining, eyes totally relaxed. With the lights off, it's better than being in a theater. I tried an ipad pro in the Apple store and it felt like I had my own…
Natures own VR goggles.
Re: I've acquired a new superpower
#297i certainly used this trick back in my college days, prompted by a similar technique for "seeing" 3d stereoscopes on a computer monitor. I feel like i learned it somewhere on Eric Weisstein's Mathworld because the 3d objects viwer app let you split the image into two stereo images. Unfortunately java applets have been banished from the internet landscape.
Re: I've acquired a new superpower
#298You can also use this to display 3-D images. You have a stereographic projection of your image (like those kids' view-masters) and then just cross the eyes and look at the middle image. Only since the 2 images are slightly different, you can have the middle image be 3-D. It takes a bit of practice though and causes eye strain (at least for me)
It's not a great way of showing the image, but it'll do in a pinch.
Re: I've acquired a new superpower
#299I spent weeks doing this, looking at stereoscopic (?) images of protein structures, while a grad student in molecular biophysics. I got so that I could see the overlapped images pretty much instantly. But I'm having a hard time getting it now, even on the easy one.
Re: I've acquired a new superpower
#300okay, this is so cool. thank you for the new superpower!