Saturday, April 30, 2016

DeepArt - Paints your Potrait


What would you say to having your selfie turned into a Van Gogh or Matisse painting? That’s exactly what you can do with DeepArt, an algorithm that can generate a digital painting from any photo. It is now available for the first time on a platform designed at EPFL.

The process is easy enough to explain, but it draws on the latest advances in deep learning, which refers to automatic learning algorithms that make use of high-level abstractions. Those algorithms are used for such things as face recognition and computer vision. With DeepArt, the user provides the computer with a photo and asks it to produce a painting according to a particular style or artist. “The algorithm analyzes the image and extracts the key features, such as a face or an object,” said Kidzinski.
 
The program then paints an image by repeatedly comparing the initial features with the painting it is meant to emulate. After around 10 minutes of calculations, the painting is ready: the program delivers a unique, original work of art.

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Saturn’s past and present moons


Saturn’s beautiful rings form a striking feature, cutting across this image of two of the planet’s most intriguing moons.


The rings have been a source of mystery since their discovery in 1610 by Galileo Galilei. There is not full agreement on how they formed, but among the possibilities are that they may have formed along with Saturn, or that they are debris of a former moon that strayed too close to the planet and was ripped apart.

The rings are now shepherded by the gravity of some of the planet’s surviving moons. Of more than 60 known natural satellites, two of the most fascinating are also pictured in this image: Titan and Enceladus.


At 5150 km across, Titan is 10 times larger than Enceladus, which measures just 505 km in diameter. Titan is seen as a disc because light from the distant Sun is being refracted through the moon’s dense atmosphere.

Somewhere on Titan’s surface rests the Huygens probe. On 25 December 2004, Huygens detached from the Cassini mothership and, a few weeks later, parachuted through the dense atmosphere to return the first pictures of Titan’s rugged landscape of icy mountains.
Although Enceladus is a smaller moon, it has as much character. The restless interior means that water constantly jets through cracks in the icy surface. In some images, these geysers can be glimpsed at the south pole.

The image was taken on 10 June 2006 in red light with the Cassini spacecraft’s narrow-angle camera, and is orientated with north facing up. The spacecraft was some 3.9 million km from Enceladus and 5.3 million km from Titan.


Copyright NASA/JPL/Space Science Institute

Image & Info via ESA
http://www.esa.int/spaceinimages/Images/2016/04/Saturn_s_past_and_present_moons

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