LuraTech, Inc.
541 Cowper Street, Suite F
Palo Alto, CA 94301
LuraWave image compression technology
LuraWave’s wavelet technology allows for rich content and high resolution at a fraction of the original size. LuraWave, (file extension *.LWF), provides much higher image quality and a smaller file size compared to the conventional JPEG format. The JPEG format uses the Discrete Cosine Transformation (DCT), which compresses images in 8x8 blocks and results in visible artifacts at high compression rates. LuraWave compression is based on wavelet algorithms—mathematical expressions that encode an image in a continuous stream as a series of resolution levels of the entire image; thereby avoiding the tendency toward visible artifacts that result from JPEG’s DCT division of an image into discrete compression blocks.
LuraWave’s wavelet technology allows for richer content and higher resolution at a fraction of the original size. Unlike JPEG, which usually displays an image from top to bottom, with LuraWave images can be displayed progressively where a low-resolution version of the entire image appears very quickly and then the resolution improves as the bitstream comes in. If the bitstream is interrupted, viewers still see a version of the entire image and the rest of the image can later be transmitted.
Advantages
· Complete range of compression
· From pure LOSSLESS (pixel identical) to high compression LOSSY
· Lossy compression rate may be defined by the user
· extremely fast image display in Internet/intranet
· compression of images and text/image documents
· Minimal storage requirements
· fast image transfer
· various scaling functions in size and quality
· fast and effective preview image generation
· selective compression of marked regions
· password protected decompression
LuraWave image data compression products
Freeware
· LuraWave SmartCompress (Win95/98/NT)
Studio and Plug-Ins
· LuraWave Studio (Win95/98/NT)
· LuraWave PhotoShop Plug-In (Win95/98/NT, MacOS)
· LuraWave PaintShop-Pro Plug-In (Win95/98/NT)
· LuraWave QuickTime Plug-In (MacOS)
· LuraWave Cumulus Plug-In (Win95/98/NT, MacOS)
· LuraWave Director Xtra (Win95/98/NT, MacOS)
· LuraWave Browser Plug-In (Win95/98/NT, MacOS, Unix/Linux, Solaris)
OEM Developer Tools
· LuraWave Command Line Tool (Win95/98/NT, Unix, DOS)
· LuraWave C-SDK (Win311/DOS, Win95/98/NT, Unix)
· LuraWave OCX-SDK (Win95/98/NT)
· LuraWave JavaTM-SDK
LuraDocument Document-Compression
Plug-Ins
· LuraDocument PhotoShop Plug-In (Win95/98/NT)
· LuraDocument Browser Plug-In (Win95/98/NT)
OEM Developer Tools
· LuraDocument Command Line Tool (Win95/98/NT, Unix, DOS)
· LuraDocument C-SDK (Win3.11/DOS, Win95/98/NT, Unix)
More information, including latest news and downloads can be found at our Web site at:
http://www.luratech.com
LuraTech, Inc.
541 Cowper Street, Suite F
Palo Alto, CA 94301
Phone: (650) 326-8829
Fax: (650) 326-8840
e-mail: info@luratech.com
LuraTech GmbH
Rotherstraße 20
D-10245 Berlin
Tel: +49 (0)30 / 2 93 67 - 0
Fax: +49 (0)30 / 2 93 67 - 100
e-mail: info@luratech.de
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