Softek Barcode Reader Toolkit for Linux - Static and Dynamic Link Library - V7.1.2a - 개요
by Softek Software - 상품타입: Component / DLL / Static Link Library
요약
Softek Barcode Reader Toolkit for Linux by Softek Software
Reads barcodes from image files. Softek Barcode Toolkit for Linux reads barcodes from TIF and JPG files. Imaging applications can use the toolkit to read barcodes strings from scanned documents and cross reference them against database tables. The toolkit supports both Shell and 'C' programming interfaces and supports all the common barcode formats. All licenses include 12 months Support and Upgrade Cover
The Softek Barcode Toolkit enables application programmers to read barcodes from image files. The image files can be from any source, but will typically come from a scanner or computer fax modem. The barcode recognition engine is contained in a single library file, which makes product upgrades a simple matter. The application programmer can use either the Shell or the 'C' interface. The choice of interface will depend on the type of language being used and the type of application to be developed.
A few lines of code are all that is needed to read a barcode from an image. As can be seen from this example using the 'C' interface:
hBarcode = STCreateBarCodeSession() ;
bar_count = STReadBarCode(hBarcode, file, 0, &bar_codes, &bar_codes_type) ;
for (i = 0; i < bar_count; i++)
{
printf ('Barcode = %s\n', bar_codes[i]) ;
}
Using the Shell interface is even simpler:
$ ./bardecode -t any -j 1 -f file.tif
1234567890
Image Formats:
TIF
JPG
The following types of barcode are currently supported:
CODE-39
CODE-128
CODE-2-of-5 Interleaved
Codabar
EAN-8
EAN-13
Patch Codes
UPC-A
UPC-E
Barcode Widths:
The main requirement is for each black or white bar in a barcode to be clearly visible on the image. All barcodes have at least 2 sizes of bar and the image needs to be of high enough quality to show this. For example, a Code 39 barcode consists of 9 bars per character, of which 3 must be wide and 6 must be narrow. The wide bars should be around 2.5 times the size of the narrow bars - but for simplicity we will say 2 times the size. This means that each character needs at least 12 pixels in an image. This assumes that each pixel in the image lies either entirely in a black bar or entirely in a white bar. In practise, this isn't possible and so the resolution should allow around 36 pixels per character.
So, to encode a string of 10 characters (including the start and stop *) you will need at around 360 pixels. If the barcode is 1 inch wide on the paper then you will need to scan at a resolution of around 400 DPI. If the barcode is 2 inches wide then you will need to scan at a resolution of at least 200 DPI.
Some types of barcode have more than 2 widths of bar and a higher resolution still will be needed to ensure that the different widths can be distinguished on the image.
As for barcode height - if you have a very wide barcode then you need to ensure that it is high enough to cope with any skewing that takes place when the image is scanned.
In summary - the success of a project can depend on specifying the correct barcode size and image resolution.
Code 39 Number of Characters 10, Minimum Number of Pixels (approx) 340
Code 2 of 5 (interleaved) Number of Characters 10, Minimum Number of Pixels (approx) 190
Code 128 (code set A) Number of Characters 10, Minimum Number of Pixels (approx) 280
Code 128 (code set B) Number of Characters 10, Minimum Number of Pixels (approx) 280
Code 128 (code set C) Number of Characters 10, Minimum Number of Pixels (approx) 170
EAN-13 Number of Characters 13, Minimum Number of Pixels (approx) 190
EAN-8 Number of Characters 8, Minimum Number of Pixels (approx) 140
UPC-A Number of Characters 12, Minimum Number of Pixels (approx) 190
UPC-E Number of Characters 8, Minimum Number of Pixels (approx) 120
PartNumbers: PC-515123-141366 515123-141366 PC-515123-141367 515123-141367 PC-515123-141368 515123-141368 PC-515123-141369 515123-141369 PC-515123-141370 515123-141370 PC-515123-141371 515123-141371 PC-515123-141372 515123-141372 PC-515123-141373 515123-141373 PC-515123-161498 515123-161498 PC-515123-161499 515123-161499 PC-515123-161500 515123-161500 PC-515123-161501 515123-161501 PC-515123-161507 515123-161507 PC-515123-161508 515123-161508 PC-515123-161509 515123-161509
Publisher PartNumbers: 003/1 003/2 003/3 003/4 003/5 003/6
PurchaseOptions: Softek Barcode Reader Toolkit for Linux V7.1.2a 1 User/Developer License (Not Run-time Royalty Free) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux V7.1.2a 4 User/Developer License (Not Run-time Royalty Free) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux V7.1.2a 8 User/Developer License (Not Run-time Royalty Free) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux V7.1.2a 1 Server License (Not Run-time Royalty Free) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux V7.1.2a 1 Site Wide License (Allows Unlimited Users/Developers at a Single Physical Address) (Not Run-time Royalty Free) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux V7.1.2a 1 Distribution License (Allows you to deploy your application externally outside your organization) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux V7.1.2a 1 User/Developer Upgrade License from previous versions (Not Run-time Royalty Free) includes 1 Year Support and Upgrade Cover , Softek Barcode Reader Toolkit for Linux Source Code Escrow Annual Subscription - (An Escrow Agreement will be sent to you for signature - please read Licensing section below) , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level A Support and Upgrade Cover Renewal , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level B Support and Upgrade Cover Renewal , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level C Support and Upgrade Cover Renewal , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level D Support and Upgrade Cover Renewal , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level E Support and Upgrade Cover Renewal , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level F Support and Upgrade Cover Renewal , Softek Barcode Reader Toolkit for Linux - Support and Upgrade Cover Renewals Cost Level G Support and Upgrade Cover Renewal
Resources: Download the Softek Barcode Toolkit for Linux V7.1.2a evaluation on to your computer - Displays Nag Screens
Operating System for Deployment: Linux Kernel V2.4.x, Red Hat Enterprise Linux 3.x, Red Hat Enterprise Linux 2.x, RedHat Linux 9.x, RedHat Linux 8.x, RedHat Linux 7.x, SUSE Linux 8.x
Architecture of Product: 32Bit
Product Type: Component
Component Type: DLL, Static Link Library
Product Class: Business Components
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Keywords: softek Barcode Barcodes bar codes Author Softek Barcode Reader Linux, Linux barcode
