This is one of the neatest optical illusions I've ever seen. Viewed up close, Mr Angry is on the left and Mrs Calm is on the right. If you back up, they swap places. Even works if you print it out. Link (thanks, suckup!)
Reader comment: Hello, Just wanted to send a followup to the Mr. Angry and Mrs. Calm optical illusion post on Boing Boing. My name is Michael Mack and I worked with Dr. Aude Oliva (she authored the paper about this illusion with Dr. Philippe Schyns) for a couple years at Michigan State University before she went to MIT (where she is now). I didn't do any work directly related to this particular paper, but we worked quite a bit on using this type of illusion for other psychological experiments in perception and vision. A slightly more famous example of this illusion deal with switching between Margaret Thatcher and Tony Blair (http://cvcl.mit.edu/gallery.htm). Dr. Oliva also has a with a couple more examples (http://cvcl.mit.edu/Papers/HybridFaces_AudeOliva.pdf).
The illusion works by manipulating the spatial frequencies of the image. The low spatial frequencies (the rough, fuzzy shape information of an image) from one image (e.g. Mr. Angy) are combined with the high spatial frequencies (the sharp edge information of an image) from a different image (e.g. Mrs. Calm). When viewing this hybrid image at a close distance, our perceptual system is able to extract and process the high spatial frequencies and thus we see the image where the high spatial frequencies were taken from. When viewing the hybrid image at a distance further away, our perceptual system can no longer extract the high spatial frequencies meaning we only see the low spatial frequency information, thus we see the other image. You can also get a switch in the hybrid image by squinting."
Aude's website is: http://cvcl.mit.edu/
My website is: http://people.vanderbilt.edu/~michael.mack
I asked Amy Parness, the co-founder of Sparkle Labs, maker of fantastic educational electronics kits, to write a Medium post about gender and the business of being a maker business person. Her terrific essay calls out the problems with “pink girly engineering kits.” From Medium:
Zero UI is the new term for “invisible interfaces”—what happens in the future when all the clicking and tapping and typing is history: “If you look at the history of computing, starting with the jacquard loom in 1801, humans have always had to interact with machines in a really abstract, complex way.” [Fast Company]
CEO Dick Costolo will resign, to be replaced in the interim by Jack Dorsey
It’s time for a power upgrade — throw out that tired-out power strip and swap in this family-size USB charger, packed with 6 high-speed ports. With a built-in control chip, Kinkoo optimizes each port to ensure the fastest charging possible for all your devices. The Kinkoo is made from high-grade and durable materials so you […]
Watching Netflix, Hulu or other streaming services can unfortunately be difficult while traveling outside the US. Rather than bypass these restrictions with the help of a complex and slow VPN, choose a faster and simpler solution with Getflix. Instead of rerouting all your Internet traffic through a different server, this handy service only routes the […]
Shake, stir, and muddle your way to delicious homemade cocktails with this must-have bar set. Expect only the finest quality tools from MakersKit — enabling you to unleash your inner mixologist.Top 12 Favorite Things of 2014, Sunset MagazineQuart-size vintage-style Mason jar shakerRetro double jigger for accurate measurementsStrainer & spouts for a mixologist-style smooth pourHardwood muddler […]