How to scan, read QR Code barcodes in Java applications?

KA Barcode Reader for Java Library

Scanning & Reading QR Code barcode images in Java Class

Java Barcode Reader > How to read, scan barcodes using Java codes? > Scan, read, recognize QR Code barcode image in Java

Easy to integrate QR Code barcode reading and scanning feature in your Java applications
Complete developed in Java. SDK 1.4.2 and later version are fully supported. No registration key. No activation code.
GIF, JPEG, PNG, TIFF files and Java AWT image objects supported
Support multi-barcode scanning, rotated barcode reading, imperfect image scanning
Support scanning QR Codes from image file, Stream object, byte array from database or network
Fast Reading Speed with detailed QR Code barcode information returned, including data, region

Introduction

Scanning and reading barcode QR Code from image file is a key feature in KeepAutomation Java Barcode Reader library. The barcode library is completely developed using Java programming for scanning, reading, parsing QR Code and other 10+ barcode types from image sources. And you can easy integrate the barcode reading feature in your Java web or desktop applications without any registration and activation code.

How to scan, read QR Code barcodes using Java

It is really an easy task to scan, read QR Codes from images using Java.

Call method BarcodeReader.readBarcodeMessage() with input image file (or image data in Stream object, byte array), barcode type
You will get a list of string data for all barcodes detected on the input image file
Besides image file path, you can also pass java.awt.Image or java.awt.image.RenderedImage object to the readBarcodeMessage() method.

import com.keepautomation.barcodereader.BarcodeReader;
import com.keepautomation.barcodereader.BarcodeType;
...
String[] msgs = BarcodeReader.readBarcodeMessage("C:/Sample-QRCode-Image.png", BarcodeType.QRCode);
...