Agriculture
Fast-flying fungal spores
Microbes at the Gas Pump
Flush-Free Fertilizer
Amphibians
Poison Dart Frogs
Frogs and Toads
Salamanders and Newts
Animals
Odor-Chasing Penguins
Insects Take a Breather
A Seabird's Endless Summer
Behavior
Island of Hope
Swine flu goes global
Diving, Rolling, and Floating, Alligator Style
Birds
Storks
Seagulls
Flamingos
Chemistry and Materials
Earth from the inside out
Sticky Silky Feet
A Framework for Growing Bone
Computers
Hubble trouble doubled
Galaxies far, far, far away
Two monkeys see a more colorful world
Dinosaurs and Fossils
Meet your mysterious relative
Did Dinosaurs Do Handstands?
Ancient Critter Caught Shedding Its Skin
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
A Global Warming Flap
Bugs with Gas
The Rise of Yellowstone
Environment
Inspired by Nature
Sounds and Silence
The Best Defense Is a Good Snow Fence
Finding the Past
Big Woman of the Distant Past
Little People Cause Big Surprise
Decoding a Beverage Jar
Fish
Tilapia
Angler Fish
A Grim Future for Some Killer Whales
Food and Nutrition
Recipe for Health
In Search of the Perfect French Fry
Packing Fat
GSAT English Rules
Who vs. That vs. Which
Problems with Prepositions
Who vs. Whom
GSAT Exam Preparation Jamaica
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exam Preparation
GSAT Mathematics
Play for Science
42,000 students will sit for the GSAT Exam in two weeks
Math Naturals
Human Body
Nature's Medicines
Tapeworms and Drug Delivery
What the appendix is good for
Invertebrates
Lobsters
Daddy Long Legs
Tapeworms
Mammals
Hamsters
Scottish Folds
Gazelle
Parents
Choosing a Preschool: What to Consider
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
Physics
The Pressure of Scuba Diving
Project Music
Dreams of Floating in Space
Plants
Tracking the Sun Improves Plant Pollen
Sweet, Sticky Science
Hungry bug seeks hot meal
Reptiles
Pythons
Sea Turtles
Snapping Turtles
Space and Astronomy
Zooming In on the Wild Sun
Asteroid Lost and Found
A Puffy Planetary Puzzle
Technology and Engineering
Bionic Bacteria
A Clean Getaway
Model Plane Flies the Atlantic
The Parts of Speech
Adjectives and Adverbs
What is a Noun
Countable and Uncountable Nouns
Transportation
Flying the Hyper Skies
Reach for the Sky
Middle school science adventures
Weather
A Change in Climate
A Dire Shortage of Water
Earth's Poles in Peril
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™