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Aztec Barcode

Tool to generate barcodes in Aztec format, a standardized 2D barcode format ISO / IEC 24778: 2008 whose center is composed of concentric squares.

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Aztec Barcode -

Tag(s) : Image processing, Character Encoding

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Aztec Barcode

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AZTEC Barcode Generator



Tool to generate barcodes in Aztec format, a standardized 2D barcode format ISO / IEC 24778: 2008 whose center is composed of concentric squares.

Answers to Questions

What is the Aztec barcode?

The AZTEC barcode type is the ISO / IEC 24778: 2008 2D barcode standard invented by Andrew Longacre, Jr. and Robert Hussey in 1995 filed in the public domain.

Example: aztec

How to encode a message with Aztec?

An Aztec code consists of a central eye of 5 concentric squares on 9x9 pixels, and 4 marks at the corners to distinguish the orientation increasing the minimum size to 11x11 pixels minimum. The first 40 bits available are used to encode the message parameters.

The message data is then distributed in binary around the edge, always concentrically. In the message, check / error correction bits must be added according to the Reed-Solomon code.

The Aztec barcode uses 4-bit and 5-bit coding, with a switch system from one mode to another.

The 1 bits are encoded by black squares, and the 0 bits are encoded by white squares.

Refer to the documentation for more details. dCode allows the encoding of any ASCII message.

How to read an Aztec barcode?

The reading consists of detecting the central eye of the 2D code, identifying the orientation and spiral reading the bits 0 and 1 (black = 1 and white = 0).

dCode does not offer playback, but recommends mobile phone apps.

What are the advantages of the Aztec barcode?

The Aztec code has the ability to be adaptive in size while keeping it minimal. Graphical coding makes the data concentric.

Why this barcode is named Aztec?

The Aztec name (from the Aztec Indian people) comes from the graphical resemblance of the bar code center with the Aztec pyramids.

How to recognize an Aztec barcode?

An Aztec barcode is a 2D square composed of black and white dots (or 2 distinguishable enough colors). Its main feature is the center of the barcode with 5 concentric squares, 3 black and 2 white alternately. These squares may be reminiscent of an Aztec pyramid (staircase) in plan view.

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Source code

dCode retains ownership of the source code of the script Aztec Barcode online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be given for free. To download the online Aztec Barcode script for offline use on PC, iPhone or Android, ask for price quote on contact page !

Questions / Comments


Team dCode likes feedback and relevant comments; to get an answer give an email (not published). It is thanks to you that dCode has the best Aztec Barcode tool. Thank you.


Source : https://www.dcode.fr/aztec-barcode
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