Reading QR Codes

In English, the abbreviation QR means "quick response", which translates as "fast response". Indeed, in a small picture with a code is embedded a lot of information. So, in one code you can encrypt 7089 digits,4296 digits and letters, 2953 bytes of binary code and 1817 characters. As you can see, those who invest in the code some information, there is where to turn. But do not forget that there are several algorithms for creating codes, so that the program was corrected errors Reed-Solomon (RS) so that the programs were not mistaken when reading QR-codes. Strangely enough, most of the matrix of code is occupied by the RS system.

The recognition of QR-code occurs through various programs that scan the code and completely decrypt it. Since codes are found everywhere,the developers have written various programs that can be installed on the phone. This is due to the fact that all phones have a camera that programs use to read QR codes. Of course, using a computer you could also perform such an operation, but you will agree that carrying a netbook or laptop with you is somehow not very convenient. And no one is leaving the mobile phone.

Reading QR codes can be done manually, but forIt should be knowledgeable in the field of encryption of binary code and know exactly where the necessary information is located. But in order not to torment anyone, QR code reading was provided to various programs for smartphones that run on the basis of certain OS: A200, Android, Apple iOS, Bada, BlackBerry OS, Java, Maemo, Symbian OS, Windows Mobile and Windws Phone 7.

Almost any program for reading QR codes also can also read bar codes, which we are accustomed to seeing on the price tags of goods. But each of the programs has its advantages or disadvantages. Let's make a brief overview of the programs that are available for download on the Internet.

KAYWA Reader - A simple and convenient program for recognizingQR code. It is suitable for most operating systems installed on mobile phones. But it has several drawbacks. The fact is that reading QR codes is very slow, and the program uses a lot of resources.

Nokia barcode reader - Russian-speaking program for phones,working on the basis of Symbian OS. In this application there is a huge disadvantage: reading QR-codes, which contain a lot of information, lasts long enough. Also the program recognizes small codes for a very long time.

I-Nigma by right is considered one of the best of its kind. For numerous models of mobile devices there are different versions of the application, and the program itself is characterized by the presence of various useful functions. It's worth remembering that I-Nigma is starting for a very long time.

Program QuickMark There are a lot of settings thateach user can use. But the user interface leaves much to be desired, especially since there are numerous menu items in the application that can not be understood immediately. And the Russian language does not support the program.

iMatrix Works only on the basis of Mobile Mac OS. In this program there is nothing weird, it works fast, it runs well, it has the most usual set of functions and a good interface.

There are many more programs that can be used to read QR codes. These programs are the mostpopular. But on the Internet, you can find so many programs that all of them can not be described. Of course, many of them have advantages and disadvantages. But to find out which of the programs for reading QR codes is best for you, you should install and test each of them.