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.

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 September 2, 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 September 2, 2014).

Share This




More Computers & Math News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Oops! Microsoft Hints At Windows 9 Launch, Rumors Abound

Oops! Microsoft Hints At Windows 9 Launch, Rumors Abound

Newsy (Sep. 2, 2014) Microsoft's Chinese offices may have just named and set a rough date for the company's next operating system, Windows 9. Video provided by Newsy
Powered by NewsLook.com
Google Teases India Event, Possible Android One Reveal

Google Teases India Event, Possible Android One Reveal

Newsy (Sep. 1, 2014) Google has announced a Sept. 15 event in India during which they're expected to reveal their Android One phones. Video provided by Newsy
Powered by NewsLook.com
Google's Self-Driving Car Still Has Many Flaws

Google's Self-Driving Car Still Has Many Flaws

Newsy (Sep. 1, 2014) You've seen a lot of Google's self-driving car, but that doesn't mean it's coming soon. A new report says the vehicle is nowhere near road ready. Video provided by Newsy
Powered by NewsLook.com
Apple's Rumored iWatch Could Cost $400

Apple's Rumored iWatch Could Cost $400

Newsy (Aug. 31, 2014) Apple is expected to charge a premium for its still-rumored wearable device. Video provided by Newsy
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:
from the past week

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