DjVu


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DjVu

(application, compression, file format, graphics, World-Wide Web)
(pronounced like "deja vu") An image compression algorithm and software developped by Yann LeCun's research group at AT&T Labs, which provides high resolution digital images for distribution over the Internet. DjVu is five to 20 times more efficient than JPEG or GIF. A free web browser plug-in allows users to display DjVu images.

http://djvu.research.att.com/.

DjVu

(DeJa VU) A document publishing format that was developed at AT&T in the mid-1990s. Similar to Adobe's portable document format (PDF) in that tables of contents, Web links and meta-data are supported, and free readers are available to view the documents, DjVu documents take considerably less storage space than the same content in PDF. Space savings is a primary benefit, and DjVu documents render faster than PDF because only the pages being viewed need be decompressed.

DjVu Is Raster Based
DjVu pages are highly compressed bitmaps (raster images). Text and graphics are separated, and the color graphics are compressed at a low resolution using wavelet compression. Text characters are compressed as bitmaps at a higher resolution with an index to their locations on the page. Since DjVu documents are created at a target resolution, the page is less crisp when zoomed in and out to different sizes. In contrast, PDF documents use fonts and vector images that scale to the size of the window on screen without distortion. For more information, visit www.djvu.org. See PDF, wavelet compression and graphics.
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References in periodicals archive ?
DjVu Zone: The Technology for Scanned Documents on the Web.
Acquired from AT&T Labs, DjVu represents superior document imaging technology, ideal for legal documents, receipts, tax returns, personal mementos, e-book publishing, medical or financial record storage and retrieval, and easy development of Web sites, according to the announcement.
Lim joined LizardTech in 2001 as marketing director for the DjVu product line and will use his extensive knowledge of DjVu to continue to grow the brand under the Celartem name.
Bondi was first introduced to DjVu while developing the software interface used by The New Yorker Magazine for the highly successful The Complete New Yorker.
Enolsoft DjVu Viewer for Mac is a simple yet useful utility for Mac users to easily open and read DjVu files on Mac with bookmark, continuous scrolling and Zoom-in, Zoom-out function.
With LizardTech's groundbreaking DjVu technology, originally developed in AT&T Research Labs, readers of magazines such as Printing Impressions, BookTech, E-Gear and other NAPCO print publications will now be able to receive digital replicas of their favorite magazine, with the same layout as the print edition, featuring all the editorial content, colorful images and advertisements.
Copies of Seattle Weekly will now be available in digital replicas thanks to LizardTech's groundbreaking DjVu technology, originally developed in AT&T Research Labs.
Thanks to LizardTech's groundbreaking DjVu technology, which was developed in AT&T Research Labs, more than 4,000 New Yorker Magazine issues are available in a collection of eight DVDs titled "The Complete New Yorker.
Document Express with DjVu, is the software that gives the user the ability to encode and then manipulate highly compressed representations of scanned and electronic black and white and color documents, in an open source file format called DjVu.
DocumentExpress with DjVu is the premier open platform for creating, storing and exchanging scanned and electronic color documents with unmatched compression, quality and web-optimization.
LizardTech, today announced that its DjVu document compression technology is now available via a new free trial service from O2, called DocRocket Launcher.