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ZBar is an open-source C barcode reading library with C++, Python, [2] Perl, and Ruby bindings. [3] [4] [5] It is also implemented on Linux and Microsoft Windows as a command-line application, [6] and as an iPhone application. [7] It was originally developed at SourceForge. [8]
Optimizing the length of the resulting barcode is important when barcode readers are used which must detect the entire barcode image at once in order to read it, such as common laser scanners. The longer the barcode is, the greater distance of laser barcode reader from barcode image is needed, making reading difficult or impossible above some ...
Barcode library or Barcode SDK is a software library that can be used to add barcode features to desktop, web, mobile or embedded applications. Barcode library presents sets of subroutines or objects which allow to create barcode images and put them on surfaces or recognize machine-encoded text / data from scanned or captured by camera images with embedded barcodes.
There are several types of basic technologies used for data capture according to the data type: [citation needed] OCR – for printed text recognition [3] ICR – for hand-printed text recognition [citation needed] OMR – for marks recognition [4] OBR – for barcodes recognition [5] BCR – for bar code recognition [6]
A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines.
Thus a (15,10) or (15,9) Reed-Solomon code (shortened to (7,2) or (10,4) respectively), over GF(16) is used. Because an L+1-layer compact Aztec code can hold more data than an L-layer full code, full codes with less than 4 layers are rarely used. Most importantly, the number of layers determines the size of the Reed–Solomon codewords used.
DotCode barcode can be used in the same way as Code 128 or any (2D) matrix barcode. At this time, it is used mostly to encode GS1 data in tobacco, [10] [11] alcoholic and non-alcoholic beverage, [12] pharmaceutical and grocery industries. The main implementation at this time is in tobacco industry. [13] [14]
Zebra Programming Language (ZPL) is a page description language from Zebra Technologies, used primarily for labeling applications. The original language was superseded by ZPL II, but it is not fully compatible with the older version. ZPL II is supported by some non-Zebra label printers. [1] [2]