ACDSee LuraDocument Plug-In

About LuraDocument

LuraDocument is a highly innovative software technology designed for compressing and archiving scanned colored documents that combine text and images.  Users can take high-resolution color scans and make them available as highly compressed files optimized for the Internet, intranet applications and corporate networks.

LuraDocument enables users to overcome the bandwidth challenges of storing scanned documents.  Prior to LuraDocument, the high resolution required to preserve the quality of images and at the same time keep text readable, created file sizes that were too unwieldy for acceptable download and transfer speeds.

LuraDocument optimizes compression by processing text and image data separately, applying best suited compression algorithms for the different data structures.  LuraDocument encoder software performs an image analysis that separates the original document into text and image regions.  Text regions are then compressed using a state-of-the-art bitonal compression algorithm while the image regions are compressed using LuraWave®, LuraTech's patented wavelet-based image compression technology.

LuraDocument Benefits & Features

•	Significant savings in disk and network resources through the use of highly compressed digital documents.

•	Operating system independent standard file format for documents.

•	Significantly higher image quality in comparison to standard compression techniques (like JPEG and Fax Group 4).

•	Automatic partitioning between text and image regions, bitonal compression of text regions, color or grayscale wavelet compression of image regions.

•	Storage of multipage Documents in one file.

•	Thumbnail preview images.

See:

Compression Settings


About this Trial Version

This plug-in is provided as a free trial version.  The plug-in has full image decoding capabilities, but limited encoding capabilities.  30 days after installation the encoding feature will be disabled (i.e., file conversion will not be possible).

See Also:

About LuraTech Document Format

How to Purchase the ACDSee Plug-in


Compression Settings

The Coding Mode

Save Thumbnail

Text Sensitivity

Quantization

Threshold

Segmentation

The Bitonal Coder

Compression


Coding Mode

Four coding modes are available for LuraDocument compression:

Everything

Text, background image and text color are coded.

Text Only

Only the black text is coded.  The background image and text color will be discarded.

Image Only

Only the background image is coded.  All the text in the image will be discarded.

Image and Black Text

Only the black text and the background image are coded.  The color of the text will be discarded.


Save Thumbnail

With this option you can include a small thumbnail version of the image in the image file.  This option is recommended because it will allow you to preview the image quickly without decoding the entire file.


Text Sensitivity

This allows you to adjust sensitivity for the text detection.  The higher the value is set, the more sensitive the text detection becomes.  For dull images with low contrast, this value should be set to high a value.


Quantization

Quantization is the conversion from a colored representation of a grayscale image to a black and white (binary) image.  This binary image is the input for the text detection (the segmentation), which generates the text layer.

There are two different quantization methods available.  Either a fixed threshold quantization or an adaptive quantization can be used. The adaptive quantization adapts locally to small regions while constant quantization uses a given value for the entire image.


Threshold

If the constant quantization option is chosen, you must select a threshold.  This is the value that will be used to quantize the entire image.


Segmentation

The segmentation stage classifies areas of the document as either text or image regions.   There are three segmentation options:

Automatic Text Detection

Automatic segmentation is performed which only detects dark text.

Automatic (Allow Inverse Text)

Automatic segmentation is performed which detects dark text and inverse text (light text on a dark background).

Everything Dark is Text

No segmentation is performed.  This is the most conservative setting as everything dark in the image is assumed to be text.


Bitonal Coder

The text layer may be encoded with either of the following coders:

LuraDocument

This is a highly efficient bitonal coder, 10-30% better than Fax Group 4.  This option is recommended.

Fax Group 4

This is the industry standard bitonal coder.  It allows the text image of your LuraDocument file to be viewed on any TIFF Fax Group 4 compatible image viewer.


Compression

The desired compression ratio may be altered.  A low compression rate will result in high image quality but a large file size.  A high compression rate will result in poor image quality but a small file size.


How to Purchase the ACDSee LDF Plug-in

Pricing

The price of the LuraTech Document Format Plug-in is $149.95 US.

Ordering

The following methods of ordering are available:

Telephone

Fax

Internet

Postal Mail


Purchasing by Telephone

To purchase by phone, call 1 (250) 544-6700

For corporate and site license arrangements, call 1 (800) 579-5309.

Where international 800 service is unavailable,

please call 1 (250) 544-6700.

Operators are standing by to take your order 24 hours a day, every day of the week.

Payment can be made using one of the following credit cards:

MasterCard

VISA

Discover

American Express


Purchasing by Fax

Print out and complete the supplied order form.

FAX the completed form to 1 (800) 819 2207 [outside North America: 1 (250) 382 7099].


Purchasing by Internet

You can order online by following this link:
http://www.acdsystems.com/orders/

Payment can be made using one of the following credit cards:

MasterCard

VISA

Discover

American Express


Purchasing by Postal Mail

1.	Print out and complete the supplied order form.

2.	Send the completed order form with your US funds check or money order to one of the addresses listed at the top of the order form.


LuraDocument Plug-in Order Form

USA	Canada

ACD Systems, Inc.	ACD Systems, Ltd.

2201 North Collins, Suite #100	PO Box 36

Arlington, TX  76011	Saanichton, BC Canada V8M 2C3

North America	International

Phone: 	1 (250) 544-6700	Phone: 	1 (250) 544 6700

Fax: 	1 (800) 819-2207	Fax: 	1 (250) 382-7099

Date___________________________

Name_________________________________________________________________________________________

Company____________________________________________________	Phone_________________________

Street_______________________________________________________	FAX___________________________

City _________________________	State/Province______	Country___________________ Zip/PC______________

Email______________________@__________________________________________________________________

All amounts are in United States dollars.

Please call about site licenses rates, special educational discounts and other offers.

Single user license	___@ $149.95	=__________

Disk shipping and handling, if applicable

U.S. & Canada	___ @ $4.95	=__________

Other Areas	___ @ $11.00	=__________

Method of payment:  Check*___	 Money order___	 MasterCard___	VISA___

* Checks must be from a US bank and be pre-approved (some delay in shipping will result).

Name exactly as on credit card_____________________________________________________________________

Card number____________________________________________________________________________________

Exp. Date_____________

Signature________________________________________________________________


Four coding modes are available for LuraDocument compression:

Everything

Text, background image and text color are coded.

Text Only

Only the black text is coded.  The background image and text color will be discarded.

Image Only

Only the background image is coded.  All the text in the image will be discarded.

Image and Black Text

Only the black text and the background image are coded.  The color of the text will be discarded.


This allows you to adjust sensitivity for the text detection.  The higher the value is set, the more sensitive the text detection becomes.  For dull images with low contrast, this value should be set to high a value.


Quantization is the conversion from a colored representation of a grayscale image to a black and white (binary) image.  This binary image is the input for the text detection (the segmentation), which generates the text layer.

There are two different quantization methods available.  Either a fixed threshold quantization or an adaptive quantization can be used. The adaptive quantization adapts locally to small regions while constant quantization uses a given value for the entire image.


If the constant quantization option is chosen, you must select a threshold.  This is the value that will be used to quantize the entire image.


The segmentation stage classifies areas of the document as either text or image regions.   There are three segmentation options:

Automatic Text Detection

Automatic segmentation is performed which only detects dark text.

Automatic (Allow Inverse Text)

Automatic segmentation is performed which detects dark text and inverse text (light text on a dark background).

Everything Dark is Text

No segmentation is performed.  This is the most conservative setting as everything dark in the image is assumed to be text.


The text layer may be encoded with either of the following coders:

LuraDocument

This is a highly efficient bitonal coder, 10-30% better than Fax Group 4.  This option is recommended.

Fax Group 4

This is the industry standard bitonal coder.  It allows the text image of your LuraDocument file to be viewed on any TIFF Fax Group 4 compatible image viewer.


The desired compression ratio may be altered.  A low compression rate will result in high image quality but a large file size.  A high compression rate will result in poor image quality but a small file size.


These options deal with the text layer of the image.


With this option you can include a small thumbnail version of the image in the image file.  This option is recommended because it will allow you to preview the image quickly without decoding the entire file.