Featured Research

from universities, journals, and other organizations

New software to allow more and larger images on Wikipedia

Date:
November 20, 2013
Source:
University of Southampton
Summary:
Researchers have developed new software that will allow users to put more and larger images on Wikipedia. Every day millions of users upload thousands of images to Wikipedia. Until now, the processing system needed a lot of resources and this limited the size of the images allowed.

Researchers have developed new software that will allow users to put more and larger images on Wikipedia.

Related Articles


Every day millions of users upload thousands of images to Wikipedia. Until now, the processing system needed a lot of resources and this limited the size of the images allowed.

VipsScaler is a new Mediawiki extension based on the very fast, free VIPS image processing system that has been developed by Dr Kirk Martinez from the University of Southampton and Dr John Cupitt from Imperial College London. Switching to VipsScalar has let Wikipedia remove many of its limits on image uploading as it processes large images quickly, using only a little memory.

Most image processing systems load the entire image into the computer's memory and then transform it in a series of steps, each of which needs another complete copy of the image being worked on. Complex operations on large images use large amounts of working memory.

VIPS takes a different approach. Images are chopped into small tiles and then passed and processed through all the processor cores, before being reassembled into their final form at the end. As it never has the whole image loaded, VIPS only requires a relatively small amount of memory. If the computer has more than one processing unit, VIPS can quickly make copies of the network and give one copy to each processor, making images flow even faster.

This unusual design is because of the history of VIPS. It began life in the early 1990s when computers were more than 1,000 times smaller and slower than they are now, but Dr Martinez and Dr Cupitt still needed to be able to process large images.

Dr Martinez, from Electronics and Computer Science at the University of Southampton, says: "It turns out that the design is now ideal for systems which need to manage thousands of requests for images. In the early days, speeding up the processing of one 1GByte image from minutes to one minute was the aim. Problems now are often to process millions of images or terabytes of images.

"Wikipedia used to solve this by simply banning large PNG images, now they allow them. Hopefully other formats will follow, for example VIPS can downsize large tiff images efficiently too."


Story Source:

The above story is based on materials provided by University of Southampton. Note: Materials may be edited for content and length.


Cite This Page:

University of Southampton. "New software to allow more and larger images on Wikipedia." ScienceDaily. ScienceDaily, 20 November 2013. <www.sciencedaily.com/releases/2013/11/131120081402.htm>.
University of Southampton. (2013, November 20). New software to allow more and larger images on Wikipedia. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2013/11/131120081402.htm
University of Southampton. "New software to allow more and larger images on Wikipedia." ScienceDaily. www.sciencedaily.com/releases/2013/11/131120081402.htm (accessed October 24, 2014).

Share This



More Computers & Math News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Apps to Organize Your Life

The Best Apps to Organize Your Life

Buzz60 (Oct. 23, 2014) — Need help organizing your bills, schedules and other things? Ko Im (@konakafe) has the best apps to help you stay on top of it all! Video provided by Buzz60
Powered by NewsLook.com
Nike And Apple Team Up To Create Wearable ... Something

Nike And Apple Team Up To Create Wearable ... Something

Newsy (Oct. 23, 2014) — For those looking for wearable tech that's significantly less nerdy than Google Glass, Nike CEO Mark Parker says don't worry, It's on the way. Video provided by Newsy
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) — Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) — As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins