What is a Barcode?

A barcode is an optical machine-readable representation of data relating to the object to which it is attached. Originally barcodes systematically represented data by varying the widths and spacings of parallel lines, and may be referred to as linear or one-dimensional (1D). Later they evolved into rectangles, dots, hexagons and other geometric patterns in two dimensions (2D). Although 2D systems use a variety of symbols, they are generally referred to as barcodes as well. Barcodes originally were scanned by special optical scanners called barcode readers. Later, scanners and interpretive software became available on devices including desktop printers and smartphones.

Why do we need verification?
If it doesn’t pass we can help analyse if a printing or design fault. This 8-9 checks.

Barcode Contrast

The contrast between positive and negative spaces are important, clear contrast is needed to ensure codes can be scanned and verified easily and correctly. It is important to make sure the barcode design and colour is suitable, as barcodes are an important functional design. Black and white provides the most ideal contrast, those barcodes which use colour may need a verifier with a different colour light.

Types of Barcode?

Linear Barcodes

These are the most common types of barcodes and are synonymous with the style found on food and produce but they come in many types and standards. A prime example is that of the ISBN system for books.

2D Barcodes

A matrix code, also termed a 2D barcode or simply a 2D code, is a two-dimensional way to represent information. It is similar to a linear (1-dimensional) barcode, but can represent more data per unit area by expanding vertically as well as horizontally.

QR Barcodes

These are a newer type of barcode quickly gaining popularity. First developed for the automotive industry, this type of 2d matrix barcode is liked for it’s fast device readability and large data storage capacity.

What is Barcode Symbologies?

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