JBIG Compression in an SDK Bi-level, lossless compression from LEADTOOLS

LEADTOOLS completely supports all three types of images (bitonal, grayscale and color), giving you the ability to make full use of this powerful compression technology.LEADTOOLS also supports the progressive capability of JBIG, allowing you to store and send multiple representations of images at different resolutions without any extra storage overhead.

To achieve the highest compression ratios available in the JBIG format, LEADTOOLS takes full advantage of all the functional blocks of this robust standard:

• The Adaptive Arithmetic Encoder, which presents the heart of this format, has the ability to predict and hence encode future data symbols based on the data which is being currently encoded.
• The Adaptive Template Block provides real coding gain for images rendered by grayscale with halftoning. This gain ratio approaches 80% in some situations.
• The Typical Prediction Block speeds implementations and provides some coding gain.
• The Resolution Reduction Block is used to get a lower resolution version of an image so that no loss of data is encountered. This is mainly important for bi-level images, to avoid any deletion of thin lines.
• The Deterministic Prediction Block provides good coding gain when saving more than one resolution layer in the same file.

Click here to see a comparison chart of document imaging compressed formats

JBIG Defined:

JBIG is an acronym for 'Joint Bi-level Image experts Group'. This was a group of experts nominated by national standards bodies and major companies to work to produce standards for bi-level image coding. The JBIG group has developed IS 11544 (ITU-T T.82) standard for the lossless compression of a bi-level image. It can also be used for coding grayscale and color images with limited numbers of bits per pixel. It can be though to be similar to Group 3 or Group 4 fax, offering between 20% and 80% improvement in compression over these methods. JBIG compression averages about a 20:1 over the original uncompressed image.

Supported compression formats click below for information on compression formats available in the LEADTOOLS SDKs

LEADTOOLS offers more compression options than any other toolkit on the market. LEADTOOLS supports industry standard and proprietary alternative compression algorithms including:

• ∗JPEG2000
• JPEG
• LEAD CMP
• LZW
• RLE / PackBits
• ZIPLIB
• CCITT G3/G4
• Huffman
• Arithmetic
• ∗JBIG
• ∗LEAD CMW
• ‡LEADTOOLS ABC
• ∗JBIG2
• ∗ABIC

This feature is available in the following products See the list above for more information on which formats are supported in each toolkit.

Pricing Structure

Product	Price	Purchase	Try
LEADTOOLS Raster Imaging SDK	$495		Free Trial
LEADTOOLS Raster Imaging SDK Pro	$995		Free Trial
LEADTOOLS Vector Imaging Pro	$1995		Free Trial
LEADTOOLS Document Imaging Suite	†$3995		Free Trial
LEADTOOLS Medical Imaging SDK	†$4495		Free Trial
LEADTOOLS Medical Imaging Suite	†$7995		Free Trial

†Marked toolkits require runtime licensing based on the deployment of the application you develop. Several purchase options are available. For more information, please contact oemsales@leadtools.com or call a LEAD sales representative.