How Do Magic Eye Pictures Work?

Magic Eye's granddaddy was the random dot stereogram invented by neuroscientist and psychologist Bela Julesz in 1959 to test people’s ability to see in 3D. Julesz would generate one image of uniform, randomly distributed dots. Then, he’d select a circular area of dots within the image and shift that area slightly in a second image. Someone viewing the two pictures side by side perceive a circle floating above the background, even though the random dots had no depth cues. This supported his idea that depth perception happened in the brain, and not in the eye itself.

Twenty years later, a student of Julesz’s named Chris Tyler and computer programmer Maureen Clarke, discovered that the same thing could be done with just a single image.

Their research revealed what was happening in the eyes and brain when viewers looked at stereograms. When presented with an image like this, your eyes might each look at two different points, but because the image is a repeating pattern, the brain is tricked into thinking that the two spots are the same thing. The brain then perceives depth, with the two points as being on a virtual plane behind the pattern.

Magic Eye – which got its start in 1991 when engineer Tom Baccei, 3D artist Cheri Smith and programmer Bob Salitsky began building on Julesz’s and Tyler’s research – works by manipulating a repeating pattern to control the perceived depth and hide a three dimensional image in a two dimensional pattern.

A Magic Eye image starts with a programmer creating the hidden image (a schooner, for example) as a grayscale, smooth gradient depth map where dark points that should be furthest away are darker and closer points are in lighter shades. Then, they create a 2D pattern to camouflage that image. Finally, a computer program using a Magic Eye-patented algorithm takes the image model and the pattern and orients repeating patterns to the intended depth of the hidden image. When someone looks at a Magic Eye, the repeating pattern feeds the brain the depth information encoded into it, and the brain perceives the hidden picture.

See Also: Why Can't Some People See Magic Eye Pictures?

Looking to Downsize? You Can Buy a 5-Room DIY Cabin on Amazon for Less Than $33,000

Five rooms of one's own.
Five rooms of one's own.
Allwood/Amazon

If you’ve already mastered DIY houses for birds and dogs, maybe it’s time you built one for yourself.

As Simplemost reports, there are a number of house kits that you can order on Amazon, and the Allwood Avalon Cabin Kit is one of the quaintest—and, at $32,990, most affordable—options. The 540-square-foot structure has enough space for a kitchen, a bathroom, a bedroom, and a sitting room—and there’s an additional 218-square-foot loft with the potential to be the coziest reading nook of all time.

You can opt for three larger rooms if you're willing to skip the kitchen and bathroom.Allwood/Amazon

The construction process might not be a great idea for someone who’s never picked up a hammer, but you don’t need an architectural degree to tackle it. Step-by-step instructions and all materials are included, so it’s a little like a high-level IKEA project. According to the Amazon listing, it takes two adults about a week to complete. Since the Nordic wood walls are reinforced with steel rods, the house can withstand winds up to 120 mph, and you can pay an extra $1000 to upgrade from double-glass windows and doors to triple-glass for added fortification.

Sadly, the cool ceiling lamp is not included.Allwood/Amazon

Though everything you need for the shell of the house comes in the kit, you will need to purchase whatever goes inside it: toilet, shower, sink, stove, insulation, and all other furnishings. You can also customize the blueprint to fit your own plans for the space; maybe, for example, you’re going to use the house as a small event venue, and you’d rather have two or three large, airy rooms and no kitchen or bedroom.

Intrigued? Find out more here.

[h/t Simplemost]

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Overexposed: A History of Fotomat

Fotomat locations promised speedy photo processing in the 1970s.
Fotomat locations promised speedy photo processing in the 1970s.
George, Flickr // CC BY-SA 2.0

Like the Golden Arches of McDonald’s that came before it, the familiar gold and pyramid-shaped roofs of Fotomat locations acted as a beacon. Instead of hamburgers, Fotomat was in the photography business, offering tiny huts situated in shopping plaza parking lots that were staffed by just one employee. Men were dubbed Fotomacs. Women were known as Fotomates, and management required them to wear short-shorts, or “hot pants,” in a nod to the strategy used for flight attendants at Pacific Southwest Airlines.

Cars pulled up to the Fotomat location and dropped off film they wanted processed. After being shuttled via courier to a local photo lab, it would be ready for pick-up the following day. And aside from selling film and a foray into renting videocassette tapes, this was all Fotomat did.

The idea, which was originally made popular by wealthy aviator Preston Fleet, was almost deceptively simple in concept and execution. At the height of Fotomat’s success in the 1970s and early 1980s, there were more than 4000 of the tiny kiosks located across the United States and Canada. But even with extremely low overhead—the little huts didn’t even have bathrooms—and a widespread love of photography, Fotomat fell victim to its own success. Its legacy even grew to include a former company president who became a federal fugitive from justice.

 

In the 1960s, Americans were fond of Kodak Instamatic cameras and film. People submitted the familiar yellow spools full of images from weddings, birthdays, trips, and other social events to photo processing labs, which might take days to return prints.

That’s where Preston Fleet saw opportunity. Fleet was a wealthy aviation enthusiast. His father, Reuben Fleet, had founded the Consolidated Aircraft Company—later known as Convair—which manufactured aircraft for World War II. Born in Buffalo, New York, Fleet moved with his family when the airplane business was relocated to San Diego. On the West Coast, he met Clifford Graham, an entrepreneur well-known in La Jolla, California, for his multiple business pursuits. Graham also had a reputation for carrying a gun and leading investors astray with questionable business practices.

Fotomat, however, was no hustle. The concept of a kiosk where people could easily drop off and pick up film that would be ready overnight originated in Florida, where Charles Brown opened the first location in 1965. After buying Brown's stock shares and arranging for a royalty, Fleet and Graham founded the Fotomat Corporation in 1967, with Graham president and Fleet vice-president. The concept grew quickly, boasting 1800 sites in its first 18 months of operation. Owing to its color scheme, people often thought Kodak operated the business, which led to complaints from Kodak as well as lawsuits. (Fotomat changed its design in 1970 to avoid confusion.)

While it was relatively easy to slot in a Fotomat hut in a parking lot, a business operating as an island surrounded by traffic had its problems. Remembering an old Fotomat in New Dorp on Staten Island, residents on Facebook recalled plowing into the kiosk or backing into it. (Most notably, terrorists destroy a Fotomat lookalike hut in the Twin Pines Mall lot in 1985’s Back to the Future.)

There was also the matter of bathrooms: They weren’t any. Employees often made arrangements to duck into local supermarkets or other stores when nature demanded it.

Hot pants and a lack of lavatories aside, Fotomat performed so well that Fleet and Graham decided to take it public in 1969, with each man holding stock worth $60 million at one point. But Graham’s controversial business practices made him a short-timer. In 1971, he was ousted from Fotomat over allegations he was misusing funds for his own personal gain, including his political interests—Graham was a supporter of both Richard Nixon and football player-turned-congressman Jack Kemp, who became an assistant to the president in the Fotomat corporation and referred football pros to become franchisees.

 

By the early 1980s, Fotomat—now minus Fleet, who had sold off his shares, and Graham—had opened over 4000 locations. That was both impressive and problematic. Fotomat had far overextended itself, sometimes opening kiosks so close to one another it cannibalized sales. There was also a growing number of pharmacies and grocery stores offering photo development services.

Fotomat locations were usually found in parking lots.David Prasad, Flickr // CC BY-SA 2.0

The real death blow for Fotomat, however, wasn’t over-expansion. It was the emergence of the one-hour minilab.

For an investment of $50,000 to $100,000, existing stores could install labs that could process photos in as little as one hour while customers shopped. Minilabs exploded from just 600 locations in 1980 to 14,700 by 1988. And since film never left the sites, it was less likely to get lost. It decimated Fotomat and its copycat businesses, with Fotomat moving from an impressive 18 percent market share in the photo processing industry to just 2 percent by 1988.

The company tried to recalibrate, converting home movies to videotape and even offering VHS rental during the VCR boom of the 1980s, but it wasn’t successful. Mass layoffs and closures followed. (Minilabs would have their own reckoning, both due to the rise of 35mm photography and digital photography.) In 1990, Fotomat was down to just 800 locations.

Fleet, who had exited Fotomat years prior—the company had been sold to Konica—was no worse for the wear. Prior to his death in 1995, he authored a book, Hue and Cry, which called into question the authenticity of works attributed to William Shakespeare. He was a founding director of the San Diego Aerospace Museum in 1963. He also helped popularize Omnimax, an immersive theater experience owned by Imax, installing a screen at the Reuben H. Fleet Space Theater and Space Museum in San Diego in 1973.

Graham’s future after Fotomat was far more colorful. Promoting a bogus gold mining operation he named Au Magnetics, he promised he could turn sand into gold. Instead, he was accused of fleecing investors. When a federal grand jury handed down an indictment that included charges of mail fraud, wire fraud, and tax evasion in 1986, Graham was nowhere to be found. Nor would he ever be located. Associates speculate he either successfully eluded authorities or was possibly killed by an investor who was unhappy with losing money.

As for the Fotomat locations themselves: Following the company’s collapse, many were repurposed into other businesses. Some became coffee shops; others morphed into watch repair kiosks, locksmith huts, windshield wiper dealers, or tailors. Presumably, none of the owners who took over mandated their employees wear hot pants.