May 2, 2013
An artist’s studio is usually a private space, and the hours spent with a paint-dipped brush in hand mostly solitary. So, the final products we gaze at on gallery walls are just the tip of the iceberg when it comes to the makers’ creative processes.
For Nathan Walsh, each of his realist paintings is a culmination of four months of eight to 10-hour days in the studio. Now, thanks to a new app, we can go back in time and see how his work came to be, stroke by stroke.
Repentir, a free app for smartphones and the iPad, provides a hand-controlled time-lapse of Walsh’s oil painting, Transamerica. It compresses months of sketching and revision into interactive pixels, allowing users to peel back layers of paint and deconstruct Transamerica to its original pencil sketches.
The app, developed by researchers at Newcastle and Northumbria universities in England, uses computer vision algorithms to recognize the painting in photographs taken from various perspectives. When you take a photo of any part of Transamerica (or the entire work), the app replaces your image with those captured in the studio as Walsh painted. Every day for four months, a digital camera set up in his York-based studio snapped a shot of his progress, accumulating roughly 90 images.
Users can view the painting’s layers in two ways. A slider feature at bottom allows viewers to see the piece in its beginning stages to the final product by swiping from left to right (think “slide to unlock”). They can also use their fingers to rub away at a given spot on the painting on the screen, revealing earlier stages in the process.
“Where their fingers have been, we basically remove pixels from the image and add pixels from older layers until they’re rubbed away,” says Jonathan Hook, a research associate at Newcastle who studies human-computer interaction. “It’s like how you add paint to the canvas—we’re doing the opposite.”
Repentir was unveiled this week at the ACM SIGCHI Conference on Human Factors in Computing in Paris, an annual science, engineering and design gathering. This year’s theme is “changing perspectives.” Transamerica will be on display there until tomorrow, when it moves to the Bernarducci Meisel Gallery, a realist painting collection in New York.
The app relies on a process known as scale invariant feature matching, technology that’s similar to that of augmented reality. Researchers trained the app against a high-resolution image of Transamerica to identify and create markers for certain features. These markers can then be used to find matching features in a user’s photo of the painting and the artwork itself—even in a tiny piece of it.
“If you take a picture of the bottom right-hand corner, it will find the features in the bottom right-hand corner of the image and match them against those same features in the source image,” Hook says. “If there’s at least three or four features matched, you’re able to work out the perspective and the difference in image position on those features.”
Ninety images worth of layers may not sound like a lot when you factor in today’s smartphone scrolling speeds, but if you’re viewing Transamerica in person, there’s more than enough of it to explore. The canvas measures roughly 71 by 48 inches. It would take a massive number of screen grabs to rub away the layers of the entire work.
Transamerica is a colorful composite of elements that caught Walsh’s eye during a trip to San Francisco’s Chinatown, the largest Chinese community outside of Asia. Several years ago, Walsh traveled across America, stopping in major cities, including San Francisco, New York and Chicago, sketching and taking photographs of the urban landscapes.
Walsh says he’s often accused of stitching photographs together or touching up in Photoshop because of the realistic look of his paintings. He aims to convey a sense of three-dimensional space in his work. In Transamerica, the juxtaposition of different objects and designs create almost palpable layers of paint.
“There’s always an assumption that there’s some sort of trickery involved,” Walsh says. “Getting involved in a project like this explains literally how I go about constructing these paintings. It shows all the nuts and bolts of their making.”
Hook says the researchers chose Walsh’s work to expose those “nuts and bolts.” “Lots of people, when they see his paintings, they think he’s cheated, when in reality what Nathan does is just get a pencil and a ruler and draws these really amazing photorealistic pictures from scratch,” he says. “The idea behind the app was to reveal Nathan’s process and show people how much hard work he does.”
In this way, Walsh believes using Repentir in front of the actual work will make the gallery experience more educational for visitors. “For me, the exciting thing is that you’re getting close, as close as you can, to my experience of making the painting,” he says.
While the app is free, Hook believes the tool could lead to a new business model for artists. In the future, app users could purchase a print of a configuration of layers they like best.
March 1, 2013
In 2000, Nathalie Miebach was studying both astronomy and basket weaving at the Harvard Extension School in Cambridge, Massachusetts. She was constantly lugging her shears and clamps with her into the room where she’d study projections of stars and nebulas on the wall.
Understanding the science of space could be tricky, she found. “What was so frustrating to me, as a very kinesthetic learner, is that astronomy is so incredibly fascinating, but there’s nothing really tactile about it,” says Miebach. “You can’t go out and touch a star.”
Soon, something in the budding artist clicked. Her solution? Turn space data into visual art, so that she and other learners like her could grasp it.
Miebach’s final project for her basket weaving class was a sculpture based on the Hertzsprung-Russell diagram, a well-known astronomy scatter plot measuring stars’ luminosities against their surface temperatures. Temperature readings travel downward from left to right, and the wider the diameter of the star, the higher the luminosity. The graph is used to track stars as they evolve, showing how they move along the diagram as shifts in their structure cause changes in temperature, size and luminosity.
Miebach translated the relationship between star luminosity and temperature into a thick, funnel-shaped sculpture (shown above) with tightly interwoven reeds. She uses the temperature and luminosity values of specific stars on the diagram to inform the manner in which she weaves the reeds.
Basket weaving involves a three-dimensional grid with vertical spokes that create structure and horizontal weavers that fill in the sides of the work. The sculpture achieves its shape through the interaction of the materials—usually, straw, grass or reeds—and the amount of pressure exerted on the grid by the artist’s hand.
Miebach’s next project involved transforming scientific data of solar and lunar cycles into sculpture. In the piece pictured above, the artist transferred three months of moon, twilight and sun data from Antarctica into layers of woven reeds. She assigned the vertical and horizontal reeds of the basket grid specific variables, such as temperature, wind and barometric pressure. Changes in these variables naturally altered the tension exerted on the reeds, and the varying tensions created bulges within the piece. The changing values of these variables distorted the tension between the reeds, driving the warped shapes that emerged in the piece.
Reeds are not unbreakable; if too much pressure is exerted, they snap. If Miebach used wire, she’d be completely in charge of the process, and no tension would exist to guide the piece into its final shape.
“Because these cycles change every day, you are working this grid in different ways,” she says.
The thick, ribbon-like blue lines circumventing each bulge are segmented into hours of the day. The naturally colored reeds representmoon data, the yellow reeds sun data and the green reeds twilight.
The yellow spheres on the exterior of the shape signify sunrise and the smaller navy balls represent moon phases. The orange spokes protruding from each bulge of the sculpture represent solar azimuth, or the spherical angle of the sun, and solar hours, which measure the passage of time based on the sun’s position in the sky. Red spokes designate the ocean’s high tide and yellow spokes, the low tide. The basket grid becomes a pattern representing the changes of these variables.
This weaving process remained the same when Miebach’s subject changed from sky to sea during an artist residence on Cape Cod several years ago. Armed with basic measuring tools like thermometers purchased at the hardware store, Miebach studied the Gulf of Maine every day for 18 months, checking and recording temperature, wind speeds, barometric pressure and other climate indicators. She gleaned additional data from weather stations, satellites and anchored buoys bobbing up and down in open water.
The result was multiple woven sculptures examining different aspects of the Gulf of Maine. A 33-foot-wide wall installation called “Changing Waters” (pictured above) depicts the geography of the gulf. The blue material represents its currents, streams and basins, delineated by changes in the water that Miebach recorded and assigned to each tiny segment.
“To Hear an Ocean in a Whisper” (pictured below) examines the effects of currents, temperature and tidal patterns on krill living in the Georges Bank of the Gulf of Maine. The roller coaster represents the Labrador Current, which flows from the Arctic Ocean and along Nova Scotia’s eastern coast. The merry-go-round inside shows how krill activity changes as temperature, salinity and wave height vary, and the Ferris wheel tracks the diurnal cycle of the tiny crustaceans. A swinging ship-style ride follows the tidal patterns of the Bay of Fundy on the northeast end of the gulf and nearby whale sightings.
“Everything is some sort of data point,” Miebach says. “There’s nothing there just for whimsy or aesthetic purpose only.”
The artist has taken this same approach with her latest project: translating scientific data into musical scores. When Miebach relocated from the coast of Maine to Omaha and then Boston in 2006, she realized the cityscape influenced weather dramatically, and not in the same way that the shoreline did.
“In an urban environment, you have infrastructure, you have heat bubbles that hover over cities, you have the lack of vegetation, and all these create very localized fluctuations in weather data that the weather instruments are very sensitive in picking up,” she says.
Miebach found that she could not accurately express in her basket weaving the subtle fluctuations in weather that cities foster. Instead, she began experimenting with musical notation as a medium, which she says provided the flexibility she needed in artistically representing weather data at the street level.
In the score pictured above, the royal blue squiggly lines represent cloud cover. The notes signify weather variables: orange is humidity, red is temperature and green is barometric pressure. The sky blue lines zigzagging across the sheet indicate wind direction, and the pink shading represents tempo for musicians to interpret.
Interpreting scientific data in this way allowed Miebach to translate the nuance of weather she felt was present in a city environment without altering the information in any way. “One thing that has been very dear to my heart from the very beginning is that I don’t change information for any aesthetic purpose,” she says. “I want the information to stay true, so that when you look at the sculpture, you’re still seeing the weather.”
In her musical score for Hurricane Noel, which swept along the Atlantic Ocean in 2007, Miebach correlated each change in a given weather variable she had measured with a note on the piano keyboard. The piano scale is drawn as black-and-white column on the left-hand side of the sheet music (pictured above). Shaded regions represent shifting cloud cover during the storm.
Miebach says she transposed wind speed into the upper two octaves because howling winds are a dominant aspect of any storm. Each note on the scale receives a range, from zero to two miles per hour, two to four miles per hour and so on. The same goes for temperature and barometric pressure readings.
The Nineteen Thirteen, a group of cellists and percussionists, performed Hurricane Noel at the Milwaukee Art Museum in 2011 (listen to the ominous-sounding song here). Another cellist group offered up a different interpretation.
But transforming the musical scores into live performances isn’t the end. Once she feels that she has captured the nuances of weather data from urban settings, Miebach then uses her melodious blueprints to create woven sculptures such as the one pictured below.
The amusement-park themed “To Hear an Ocean in a Whisper” that Miebach made in collaboration with Jon Fincke, an oceanography graduate student at MIT, is on display in “Ocean Stories: A Synergy of Art and Science,” an exhibition at Boston’s Museum of Science through June 2. Her latest piece, “The Last Ride,” translates weather and ocean data from Hurricane Sandy, which destroyed the Jersey Shore’s Star Jet roller coaster. It will be featured in the Massachusetts College of Art and Design’s annual art auction on April 13.
January 23, 2013
The shape of a Pringle, mathematically speaking, is called a hyperbolic paraboloid. Artists have been folding paper into this shape for years. The twist? Hyperbolic paraboloids shouldn’t exist in origami—it’s impossible to make such a 3D shape using only the creases pressed into paper by hand.
By that logic, some of Erik Demaine’s artwork shouldn’t exist either.
Demaine, the world’s top computational origami theorist, has created a series of sculptures by folding concentric squares into square pieces of paper, alternating mountain and valley, and folding the diagonals. With each sculpture, the paper pops into a saddle shape called a hyperbolic paraboloid and stays there. Its accordion-like folds are pretty to look at, but Demaine, a computer science professor at MIT, isn’t sure how it works.
Once the paper is folded, the entire structure settles into a natural form. “Physics finds that balance,” Demaine says. But, the mechanisms of the Pringle-like shape are still poorly understood. Demaine posits there must be little creases in the paper invisible to the naked eye, as handmade folds alone can’t account for the end shape.
Trying to solve this mystery means marrying sculpture and mathematics.
“We’ve come up with a math problem that inspires new art—and an art problem that inspires new math,” says Demaine. The 31-year-old artist creates his origami sculptures with his father Martin.
The final product, “Green Cycles” (pictured at top), was created using two different colored sheets of French-made Mi-Teintes watercolor paper, bonded together. Using a ball burnisher, which is essentially a ballpoint pen without the ink, the Demaines pushed the two-layer sheet into rings of concentric circles carved into a wood template. The paper is scored along the circular creases and cut into a donut shape, before it springs into a three-dimensional form. The artist creates several of these models and loops them together into an interlocking paper sculpture. The younger Demaine says the hardest part is assembly, which takes up to a week, because they can’t predict if the resulting shapes will twist around one another to create a solid, aesthetically pleasing piece.
“We get them to interlock, let go and let them relax, sometimes overnight, if we think we have a candidate sculpture,” he says. If the structure droops or falls apart, the pair tries again.
Written instructions for paper folding first appeared in 1797 in Japan. Akisato Rito published a book, Sembazuru Orikata, with lessons for 1,000 paper cranes. Adachi Kazuyuki published a more comprehensive how-to collection in 1845. By the late 1800s, kindergarteners across Europe began folding colored squares in class.
The concept was simple: no scissors, no glue, no tape—just nimble fingers bending and twisting paper into novel shapes. Origami became a modern art form in the 1950s, when Akira Yoshizawa, a Japanese artist, combined the mechanics of the craft with the aesthetic of sculpture. He created more than 50,000 paper models, never selling one. Since then, artist Eric Joisel’s crinkled lifelike animal and human figures appeared on display at the Louvre and physicist-artist Robert Lang’s detailed compositions have been exhibited at the Museum of Modern Art.
But paper folding doesn’t just create something we can ooh and aah at. It also plays a role in answering long-standing questions in math, like the fold-and-cut problem.
The first known record of the problem appeared in 1721 in a Japanese book of brain teasers, one of which asked the reader to fold a rectangular piece of paper flat and make only one straight cut to produce a Japanese crest called sangaibisi, which translates to “three-folded rhombics.” The author offered a solution through a diagram, but the problem remained an open question for centuries—how many shapes are possible?—until Demaine solved it.
As it turns out, any shape is possible—swans, horses, five-pointed stars. All that’s needed is a geometric blueprint, a guide about folding here and bending there.
The use of such blueprints added complexity to origami. In the 1960s, folding diagrams involved 20 to 30 steps. Now, a model could require 200 to 300 steps from start to finish. That’s a lot of folding for a single piece of paper. But, the trick is using super thin paper with long fibers, which give it strength to withstand all the pulling and tugging.
Computer programs have only added to the fun. TreeMaker, a free software program created by artist Robert Lang, takes user-generated line drawing and churns out patterns that can be printed out and folded to create the shapes. Origamizer allows users to design a 3D model and alter its crease patterns on the screen, exploring different shapes and forms.
With the help of computer software, origami has expanded beyond the art world. Scientists and engineers have found practical applications for paper folding. Car manufacturers, for instance, use origami mathematics to compute a crease pattern for folding airbags into flattened shapes. Demaine says origami structures could influence nanomanufacture, spurring the creation of flat intel chips that can spring into 3D shapes. He also met with members of the National Institutes of Health last year to discuss how the craft could help design synthetic virus-fighting proteins.
Linking mathematics and art does carry some occupational hazards, though.
“A few paper cuts a year,” Demaine says.
Three works by the father-son team are on display in “4o Under 40: Craft Futures,” an exhibition at the Smithsonian’s Renwick Gallery through February 3, 2013.
November 7, 2012
A few minutes late, I tiptoe into an alcove of the Phillips Collection, in Washington, D.C., where Brooke Rosenblatt is leading a discussion with ten museum visitors about Ernest Lawson’s oil painting Approaching Storm.
“Where do you think this scene takes place?” asks Rosenblatt. “Have you ever been to a place that looks like this?” She calls on audience members, who are all seated in folding chairs. The landscape of rolling hills and a stream lined with cattails seems to remind each person of a different place—Scotland, North Carolina, West Virginia, Pennsylvania, France, Switzerland. One gentleman in the front row is convinced it is upstate New York. “He obviously liked it,” he says of the artist’s relationship to the place. “It was lovingly painted.”
“Let’s step inside the picture,” says Rosenblatt. “What do you hear, smell, touch and taste?”
A man, sitting just in front of me, says he hears fish splashing in the brook. A woman in attendance hears distant thunder. And, another participant says she feels a precipitous temperature drop.
For about a year, the Phillips Collection and Iona’s Harry and Jeanette Weinberg Wellness and Arts Center, also in the nation’s capital, have partnered to offer an arts program for older adults with memory loss, Parkinson’s disease, the lingering effects of stroke and other chronic conditions. Rosenblatt, an education specialist at the Phillips, meets with participants, sometimes their family and caregivers as well, on a monthly basis; one month the group will visit the museum, and the next month Rosenblatt will bring reproductions of artworks to Iona, so that others who are less mobile can join in the conversation.
In the morning, the group discusses two to three paintings. Rosenblatt poses questions that might help individuals connect to the works on a personal level. A particular painting, for instance, may jog an old memory. Then, in the afternoon, there is an art therapy component. Jackie McGeehan, an art therapist at Iona’s Wellness and Arts Center, brings the participants together in her studio to do some art making of their own.
Throughout November, National Arts and Health Month, the Phillips Collection is displaying some of this art, created at Iona, in an exhibition called “Creative Aging.” The artworks are grouped together by monthly session and shown alongside a panel featuring the famous piece from the Phillips Collection that inspired them and a description of the themes discussed with museum educators and explored more fully in art therapy.
On the day I observe, Rosenblatt and other museum educators move from Lawson’s Approaching Storm to the next gallery, where John Frederick Peto’s painting Old Time Card Rack hangs. The still life, of sorts, shows letters, envelopes, tickets and a portrait of Abraham Lincoln tucked into a card rack, much like a bulletin board. Those attending discern that the objects must have held some meaning for the owner of the rack.
Based on the direction that the conversation takes, McGeehan chooses an art project. “Most of it comes down to my understanding of each of these people and what I think will be most beneficial emotionally. What is going to allow them to reach a little deeper?” she says, in a phone call a few days later. “A theme that I felt would be a good component to focus on was the idea of collecting and holding onto material goods or objects that remind us of moments in our lives.” In the art therapy studio, members of the program created “time stamps,” or art pieces that they can later look back on to remember this moment. Some people chose to respond to music, she said. Others created art or wrote letters to themselves.
Visitors to the exhibition will see how Pablo Picasso’s The Blue Room and Raoul Dufy’s Chateau and Horses inspired the program’s artists to convey mood through color, and Morris Louis’ Seal encouraged them to explore the themes of movement and direction. After studying George Luks’ Otis Skinner as Colonel Philippe Bridau, they created self portraits in the art therapy studio. On another occasion, participants examined John Sloan’s Clown Making Up, talked about “masking” oneself and then sculpted plaster masks.
“In recent years, a wealth of scientific research has shown the powerful effects that interaction with the arts has on health, healing and rehabilitation,” reports the Phillips Collection, in a press release. “For individuals with Alzheimer’s and related dementia in particular, studies point to the ways art can ease the devastating symptoms and lessen the anxiety, agitation and apathy associated with the disease.”
McGeehan has also seen firsthand how art can help the aging population communicate their emotions in a non-verbal way. “Art is a very safe, very contained avenue for them to express themselves,” she says. “People that have suffered a stroke may have an expressive aphasia where they are unable to communicate clearly or have trouble finding or saying words, so it has given them an additional tool to help them be heard and understood by other people.”
In her experience, McGeehan finds that art therapy helps people who are declining physically and cognitively and becoming more dependent on other people. “They are given a material that they can mold, shape and really transform from nothing to something beautiful,” she says. “That sense of control and mastery over the process for many people is very valuable.”
Rosenblatt wraps up her discussion of Lawson’s Approaching Storm with an interesting question. “If you painted this, what would you call it?” she asks. Without hesitation, one man says, “House in Sunlight.” Others agree. Although clouds are rolling into the scene, there appears to be a bright patch surrounding a single white house, and they’ve fixed their gazes on it.
If that isn’t a sign that art therapy helps with positive thinking, I’m not sure what is.
September 6, 2012
Nazim Ahmed remembers when he and his business partner Adrian Salamunovic first came up with the idea. “We were hanging out one evening,” says Ahmed. “At the time, I was working for a biotechnology company, so I had a lot of images of DNA lying around. When Adrian looked at the images, he saw art.”
The two friends talked about how cool it would be to take samples of their own DNA and, from it, create artwork to decorate their apartments. Right then and there, Ahmed, who had some DNA swabs, and Salamunovic swabbed their mouths for cheek cells. They sent the samples off to a lab, where technicians isolated specific DNA sequences and created a unique digital image—a pattern of highlighted bands—for each of the men. Once they had the images, they added color to them in Photoshop, blew them up and printed them on canvas.
“It was a little experiment. We thought it would be cool,” says Ahmed. “We never thought it was going to turn into a business.”
Soon enough, the pair started to sell the customized prints to friends and family. The success inspired Ahmed and Salamunovic to found, in June 2005, DNA 11, a Web site where people from around the world can order their very own “DNA portraits.”
In seven years of operation, DNA 11—11 represents the two strands of DNA that are paired in a double helix—has garnered a lot of attention. Just months after the site launched, Wired magazine praised the idea: “Finally, someone’s found a way to exploit your inner beauty.” In April 2007, the plot of a CSI: NY episode, titled “What Schemes May Come,” hinged on a DNA portrait. Then, in 2009, actor Elijah Wood auctioned off his DNA portrait on eBay, with proceeds going to The Art of Elysium, a charity connecting actors, artists and musicians to children with serious illnesses. Late night comedian Conan O’Brien mentioned the fundraiser on his show. And, just last month, Apple co-founder Steve Wozniak was given a DNA portrait at his 62nd birthday party in San Francisco. The image was also transposed onto his cake.
DNA 11 has a staff of 50, spread between its 5,000-square-foot headquarters in Ottawa, Canada, and its 20,000-square-foot production center in Las Vegas. Until this year, the company outsourced its lab work to a large biotech company. But, now, DNA 11 has its own swanky in-house lab.
“We wanted to have control over the entire process from beginning to end,” says Ahmed. “And we wanted to create the first genetics lab in the world dedicated to crossing art and science.”
DNA 11 loosely compares its new lab to Andy Warhol’s Factory, an experimental New York studio where the artsy set congregated in the 1960s. “It provides an inspirational space for artists, creatives and scientists to create truly remarkable biometric-inspired products,” says Ahmed. (Biometrics measure physical and behavioral characteristics, such as fingerprints and voice patterns, that are unique to individuals.)
With polished concrete floors, clean white surfaces, neon accents and state-of-the-art biotech equipment, the space has a very modern sensibility. One full-time biochem technician oversees all of the lab work.
So, how exactly is a DNA portrait made? Here’s a step-by-step run-down:
Collect DNA Sample – Once you place your order on DNA 11’s Web site, choosing the size and color scheme for your portrait, the company sends you a DNA collection kit. With a foam swab, you collect material from the inner check of your mouth. (Many customers have even collected saliva from their dogs for pet portraits.) You then rub the swab onto a small piece of paper called an FTA card, then seal it and return it to DNA 11.
At the Lab – Technicians scan a barcode on the FTA card so that, from that point on, a tracking number is attributed to your sample instead of your name. The card goes through a series of washes, and the client’s DNA sample is extracted. Technicians then identify eight small DNA sequences that are unique to every individual with respect to frequency and location. Using a process called polymerase chain reaction (PCR), they replicate the strands of DNA that are flanked by those sequences. These strands of DNA are loaded into an agarose gel, which is zapped with a current. This gel electrophoresis separates the DNA strands by size, creating a distinct pattern. Technicians stain the DNA with an ultraviolet-based dye and take a digital photograph of it. “Every image is completely unique to the individual,” says Ahmed.
Design Work – The raw image is then sent to in-house designers. “This is where we are starting to cross the art and science,” says Ahmed. The designers clean up the image and add color. Then, the image is printed onto canvas using a Canon large-format printer. A protective coating is added, and the portrait is framed.
“We are bringing genomics to the mainstream, to people who would normally not be exposed to the field,” says Ahmed.
“Before 2005, everyone visualized DNA as a double helix. Now, if you do a Google search for DNA, you will see our banding pattern,” Ahmed adds. “We have affected the way people see DNA.”