Flowchart of reading QR Codes [1] 

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... system will return the value as a result of reading process of QR Codes. Figure 3 shows the flowchart of reading QR Codes. 2) QR Codes Generator In order to change the specify data into a QR Codes, a software to generate text and number into QR Codes is needed. ...

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... Figure 2 shows the structure of QR Codes. 1) QR Codes Reader QR Codes Reader is needed in order to read the data stored in QR Codes. There are a lot of applications belong to QR Codes Reader that should be installed first in mobile device to use it properly. Applications such as Kaywa Reader, Dakode, and ZXING provide QR Codes Reader feature. On those applications, they have a function to convert a QR Codes into a text so users can read it easily. Generally, reading processes are started by recognizing a white or black module located at the end side of QR Codes. After that, system will ensure the version that is used by QR Codes itself. Next, system will call error detection function which are contained in the QR Codes. Finally, system will return the value as a result of reading process of QR Codes. Figure 3 shows the flowchart of reading QR Codes. 2) QR Codes Generator In order to change the specify data into a QR Codes, a software to generate text and number into QR Codes is needed. Some of applications such as Kaywa QR Codes, SnapMaxe and QR Codes Generator provides a feature to generate data into QR Codes. In general, the processes to make a QR Codes are the opposite with the processes to read a QR Codes. Firstly, the processes begin with analyzing and preparing data which will be generated into a QR Codes. Then, the system will run the error checking on the data. After that, the data will be changed into matrices and wrapped becoming a QR Codes. Later on, system will create form and give version information to the QR Codes. According to both error correction and masking function which is run parallelly with creating QR Codes, each word in the QR Codes represents different definition. Figure 4 shows the flowchart of generating QR Codes. ...