Agriculture
Watering the Air
Springing forward
Middle school science adventures
Amphibians
Tree Frogs
Frogs and Toads
Bullfrogs
Animals
A Sense of Danger
Insects Take a Breather
Mating Slows Down Prairie Dogs
Behavior
Eating Troubles
Baby Number Whizzes
Fighting fat with fat
Birds
Songbirds
Birds We Eat
Swans
Chemistry and Materials
Cold, colder and coldest ice
The Incredible Shrunken Kids
The science of disappearing
Computers
Hubble trouble doubled
The Shape of the Internet
New eyes to scan the skies
Dinosaurs and Fossils
Fingerprinting Fossils
Digging Dinos
An Ancient Feathered Biplane
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
Coral Islands Survive a Tsunami
Surf Watch
Deep History
Environment
Fishing for Fun Takes Toll
Missing Tigers in India
City Trees Beat Country Trees
Finding the Past
A Human Migration Fueled by Dung?
Stone Age Sole Survivors
Oldest Writing in the New World
Fish
Cleaning Up Fish Farms
Angler Fish
Great White Shark
Food and Nutrition
A Pepper Part that Burns Fat
Chocolate Rules
Eat Out, Eat Smart
GSAT English Rules
Problems with Prepositions
Capitalization Rules
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
42,000 students will sit for the GSAT Exam in two weeks
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
42,000 students will sit for the GSAT Exam in two weeks
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Math Naturals
A Sweet Advance in Candy Packing
42,000 students will sit for the GSAT Exam in two weeks
Human Body
A Fix for Injured Knees
Sleeping Soundly for a Longer Life
Music in the Brain
Invertebrates
Bees
Squid
Worms
Mammals
Doberman Pinschers
Bulldogs
Minks
Parents
Children and Media
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
One ring around them all
The Mirror Universe of Antimatter
Electric Backpack
Plants
When Fungi and Algae Marry
Bright Blooms That Glow
Stalking Plants by Scent
Reptiles
Caimans
Crocodiles
Gila Monsters
Space and Astronomy
Zooming In on the Wild Sun
A Great Ball of Fire
A Puffy Planetary Puzzle
Technology and Engineering
Model Plane Flies the Atlantic
Crime Lab
Toy Challenge
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
What is a Noun
Transportation
Morphing a Wing to Save Fuel
Robots on a Rocky Road
Reach for the Sky
Weather
Catching Some Rays
Recipe for a Hurricane
Antarctica warms, which threatens penguins
Add your Article

Detecting True Art

Real or fake? In the world of art, that can be an expensive question. Famous paintings by classic artists can sell for millions of dollars. To make a quick buck, people sometimes try to sell paintings that are imitations of the real thing. When the forgeries are done well, spotting them can be a major challenge, even for experts. Now, researchers say they have found a new way to tell the real from the fake—using mathematics. The researchers start with a digital image. They use a mathematical technique, known as wavelet decomposition, that breaks this image down into a collection of smaller, more-basic images. This method is especially useful for analyzing textures. In a photograph, it can readily detect the difference between the smooth appearance of a blue sky and the ruffled surface of a grassy field, for example. In a painting, it can capture the texture of an artist's brush strokes. When an imitator tries to copy a master artist, his or her brush strokes would probably be different. "A master might have smooth, consistent strokes, say, while an imitator is jerky," says Hany Farid, one of the researchers. Farid is a computer scientist at Dartmouth College in Hanover, N.H. The researchers used wavelet decomposition and other statistical measures to analyze eight drawings by a 16th-century artist named Pieter Brueghel the Elder. They then compared the data obtained from these drawings with measurements of five imitations revealed to be false just 10 years ago. The team found that the genuine Brueghel drawings all had similar patterns. By the same measure, the fakes were different from each other and from the true drawings. The researchers also studied a painting called "Virgin and Child with Saints." It was created near the beginning of the 16th century in the studio of the Italian artist Pietro Perugino. Their method suggested that at least four artists actually produced the painting. Showing that the method works for two artists is not enough to conclude that it will work across the board. Still, art historians are optimistic. Mathematics may yet earn a place in an expert's toolkit for detecting forgeries.—E. Sohn

Detecting True Art
Detecting True Art








Designed and Powered by HBJamaica.com™