15/2 QR Code: Don't neglect the quiet zone around the symbol
| Category: QR Code, Data Matrix... By editor at 10:39 |
Something, people often tend to forget (e.g. QR codes on black background).
QR Code FAQ
With white space this isn't a problem at all, see QR Code on the right.
Our experience is that it works almost always with only one module, but if you want to be on the safe side, it's good to keep this in mind.
QR Code FAQ
The size of QR Code depends on a module size and a symbol version. The module refers to the black and white dots that make up the QR Code. The symbol version determines the data capacity.
The area of a Version 1 QR Code is made up of 21 modules per side. Each higher version number is made up of 4 additional modules. The highest version number is Version 40.
For example, a Version 2 QR Code would be composed of a 25 by 25 module matrix. If the module size is 0.5 mm (19.7 mils) square, the size of QR Code will be 12.5 mm (0.5") square. (QR Code requires a four module wide quiet zone around the symbol.)
With white space this isn't a problem at all, see QR Code on the right.
Our experience is that it works almost always with only one module, but if you want to be on the safe side, it's good to keep this in mind.
Comments
Oliver
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http://adtagg.kaywa.ch
2007-02-18 21:11:01
What about a QR Code in colour ore even inverted? That would be a reale good thing. Espacialy for designers.
Oliver
2007-02-18 21:11:01
What about a QR Code in colour ore even inverted? That would be a reale good thing. Espacialy for designers.
Oliver
Roger
2007-02-19 01:42:53
QR Codes in color are no problem. See this example from Disney, Japan.
An inverted QR Code seems to be a problem instead, as the darker dots or modules are the ones which are read. NTTDoCoMo says that there should be a contrast of 55% between the two colors, so a code should still work with a colored surface and darker colored dots.
For further information on colored QR Codes, read Marco's Color Matters!. It not only explains how to make colored QR Codes on basis of Kaywa's QR Code Generator, it also shows how to generate a QR Code PDF.
2007-02-19 01:42:53
QR Codes in color are no problem. See this example from Disney, Japan.
An inverted QR Code seems to be a problem instead, as the darker dots or modules are the ones which are read. NTTDoCoMo says that there should be a contrast of 55% between the two colors, so a code should still work with a colored surface and darker colored dots.
For further information on colored QR Codes, read Marco's Color Matters!. It not only explains how to make colored QR Codes on basis of Kaywa's QR Code Generator, it also shows how to generate a QR Code PDF.
