INTRODUCTIONQR Code Stands for Quick Response Code It is Paper

Published: 2021-09-12 12:05:06
essay essay

Category: Computer Science

Type of paper: Essay

This essay has been submitted by a student. This is not an example of the work written by our professional essay writers.

Hey! We can write a custom essay for you.

All possible types of assignments. Written by academics

GET MY ESSAY
INTRODUCTION
QR Code Stands for Quick Response Code, It is Presently Very Popular as it is very Fast Readable and has large storage Capacity as compared to the Barcode The Code Consists of Black modules arranged in a Square pattern on a White Board. It was designed to allow its contents to be decoded at high speed. In recent years consumers have grown used to seeing the min consumer advertising and packaging, because the dissemination of smart phones “has put a barcode reader in every ones pocket” for the first time. Commercial, hardware scanners available in several technologies; no more expensive than other barcode scanners.Causal use, software generators and readers are available for free in the Internet and many Apps for PC and Mobile (which have camera).
QR- Code Scanner uses three Corners a markers, regardless of Position Scanned. The QR Code can be of any colour other than Black and of any Size With Various Patterns and Designs. Very Fast Decoding – It takes a second or two to decode the Information from the encrypted in the QR Code. About 5-6KB of Information is transferred online to the server and it responds very faster as compared to the General Barcode. High Density – This QR Code can contain up to 1852 characters (a total of 1,264 characters of ordinary/ASCII text).A QR code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a camera, and processed using Reed–Solomon error correction until the image can be appropriately interpreted. The required data is then extracted from patterns that are present in both horizontal and vertical components of the image
URLs aided marketing conversion rates even in the pre-smartphone era, but during those years faced several limitations: ad viewers usually had to type the URL and often did not have a web browser in front of them when they first viewed the ad. The chances were high that they would forget to visit the site later, not bother to type a URL, or forget what URL to type. Semantic URLs decreased these risks but did not eliminate them. With the advent of smartphones the issue of viewers not being able to access a website immediately has become less of an issue, however the trouble of typing in URLs still remained and thus QR codes were utilised in order to allow redirecting to URLs for instant access. QR codes have become common in consumer advertising. Typically, a smartphone is used as a QR code scanner, displaying the code and converting it to some useful form (such as a standard URL for a website, thereby obviating the need for a user to type it into a web browser). QR code has become a focus of advertising strategy, since it provides a way to access a brand’s website more quickly than by manually entering a URL. Beyond mere convenience to the consumer, the importance of this capability is that it increases the conversion rate: the chance that contact with the advertisement will convert to a sale. It coaxes interested prospects further down the conversion funnel with little delay or effort, bringing the viewer to the advertiser’s website immediately, where a longer and more targeted sales pitch may lose the viewer’s interest.
QR codes can be used to log into websites: a QR code is shown on the login page on a computer screen, and when a registered user scans it with a verified smartphone, they will automatically be logged in. Authentication is performed by the smartphone which contacts the server.
Consumers are offered an ever expanding array of telecommunication instruments as a result of rapidly improving technology. Electronic software applications are advancing in many different forms in order to serve customers’needs. In the advertising medium, smart phone QR code reader applications allow consumers to scan QR codes on magazine ads (Klie, 2012). A QR code is an alternative terminology for a “Quick Response”, or “2D” barcode that can be scanned by a mobile device. QR codes link the mobile device to plain text, Uniform Resource Locator(URL), Short Message Service (SMS), or contact information embedded into a 2D matrix. (eMarketer, 2012).
When consumers scan QR codes on magazine ads, they are linked with the relevant business. They can learn more
about the product in the ad and take advantage of sales promotions. They can explore other products offered by the business and remain educated on upcoming offerings. QR code scanning applications are set to become even
more popular and offer more creativity
MOTIVATION
High-speed reading(QR is derived from “Quick Response”) large data and content.High capacity and high density, Error correcting, Characters can be encoded in Qrcode are numeric(0-9)characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode. Alphanumeric (0-9A-Z $%*+-./:)45characters characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
SYSTEM REQUIREMENTS & LANGUAGE USED
Hardware and Software Requirements
Hardware System Configuration:
Processor – Intel Core i5
Speed – 2.30 GHz
RAM – 256 MB (min)
Hard Disk – 10 GB
Software System Configuration:
Operating System – Windows
Programming Language – Java Programming
Compiler – Eclipse Compiler
SYSTEM DESIGN
Structure of QR code:
Structure of QR code of 2D it is in the form of matrix
Installing a QR code in system
• To read the QRcode
QRcode image.
• QRcode image will be of chemical print to scan n the code.
Scanning the chemical print
• Scanning the chemical print through mobile phone qrcode scanner.
• After scanning displaying the decoded content of qrcode results of qr imqge
3.2 Flowchart
Reading a QRcode
Creating a QR code
Algorithm
Step 1: Start.
Step 2: Create a QRdata to be stored
Step 3: Open a file path to store the QRcode image data
File found else file not found exception
Step 4: Encode the data in matrix form store the data,
If Encode error, return Else
Step 5: QR code image successfully created.
Step 6: Open a file location where QR code image stored to read
File found else file not found exception
Step 7: Encode the data in matrix form store as image,
If Encode error, return Else
Step 8: Data read from QR code successfully
3.4 Code and Implementation
Code for Write:
package com.qrcode.com;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
public class Create_QR {
public static void main(String[] args) {
try {
String qrCodeData = “www.nhce.com “;
String filePath = “D:QRCODEqrcode.png”;
String charset = “UTF-8”; // or “ISO-8859-1”
Map hintMap = new HashMap ();
hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
BitMatrix matrix = new MultiFormatWriter().encode(
new String(qrCodeData.getBytes(charset), charset),
BarcodeFormat.QR_CODE, 200, 200, hintMap);
MatrixToImageWriter.writeToFile(matrix, filePath.substring(filePath
.lastIndexOf(‘.’) + 1), new File(filePath));
System.out.println(“QR Code image created successfully!”);
} catch (Exception e) {
System.err.println(e);
}
}
}
Code for Read:
package com.qrcode.com;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
public class Read_QR {
public static void main(String[] args) throws WriterException, IOException,
NotFoundException {
try {
String filePath = “D:QRCODEqrcode.png”;
String charset = “UTF-8”;
Map hintMap = new HashMap ();
hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
System.out.println(“Data read from QR Code: ” + readQRCode(filePath, charset, hintMap));
} catch (Exception e) {
// TODO: handle exception
}
}
public static String readQRCode(String filePath, String charset, Map hintMap)
throws FileNotFoundException, IOException, NotFoundException {
BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(
new BufferedImageLuminanceSource(
ImageIO.read(new FileInputStream(filePath)))));
Result qrCodeResult = new MultiFormatReader().decode(binaryBitmap, hintMap);
return qrCodeResult.getText();
}
}
package com.qrcode.com;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class DBConnection {
public Connection getConnection(){
Connection connection=null;
System.out.println(“Connection called”);
try {
Class.forName(“com.mysql.jdbc.Driver”);
connection = DriverManager.getConnection(“jdbc:mysql://localhost:3306/”,”scott”, “tiger”);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return connection;
}
}
package com.qrcode.com;
import java.io.File;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.HashMap;
import java.util.Map;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
public class Dyanamic_QR {
public static void main(String[] args) {
try {
DBConnection obj_DBConnection = new DBConnection();
Connection connection = obj_DBConnection.getConnection();
String query = “select * from links”;
Statement stmt = null;
stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
Dyanamic_QR.generate_qr(rs.getString(“sl_no”),rs.getString(“links”));
}
} catch (Exception e) {
// TODO: handle exception
}
}
public static void generate_qr(String image_name,String qrCodeData) {
try {
String filePath = “D:QRCODE”+image_name+”.png”;
String charset = “UTF-8”; // or “ISO-8859-1”
Map hintMap = new HashMap ();
hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
BitMatrix matrix = new MultiFormatWriter().encode(
new String(qrCodeData.getBytes(charset), charset),
BarcodeFormat.QR_CODE, 200, 200, hintMap);
MatrixToImageWriter.writeToFile(matrix, filePath.substring(filePath
.lastIndexOf(‘.’) + 1), new File(filePath));
System.out.println(“QR Code image created successfully!”);
} catch (Exception e) {
System.err.println(e);
}
}
}
Implementation:
Creating a project naming as QR_write_read
Creating a package as com.qrcode.com
Chapter 4
RESULTS AND DISCUSSION
4.1 Output Screenshots
Screenshot1
Screenshot2
Conclusion
QR code is a way of encoding more information than a traditional bar code QR code is now being widely used in a variety of businesses. For security of QR code info encryption is required goods are identified using QR codes in commerce, there is a clear need to build new mobile payment systems for mobile users to support mobile transactions based on QR codes.qr code using zing api will help users to read and generate QRcode of their website and contented to read. qr code using zing api will support the plat form independent can be used in android application in feature.

Warning! This essay is not original. Get 100% unique essay within 45 seconds!

GET UNIQUE ESSAY

We can write your paper just for 11.99$

i want to copy...

This essay has been submitted by a student and contain not unique content

People also read