Created
October 10, 2018 20:13
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zxing barcode scanner example
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| import com.google.zxing.*; | |
| import com.google.zxing.client.j2se.BufferedImageLuminanceSource; | |
| import com.google.zxing.common.HybridBinarizer; | |
| import com.google.zxing.multi.GenericMultipleBarcodeReader; | |
| import javax.imageio.ImageIO; | |
| import java.awt.image.BufferedImage; | |
| import java.io.BufferedInputStream; | |
| import java.io.File; | |
| import java.io.FileInputStream; | |
| import java.io.IOException; | |
| import java.util.EnumMap; | |
| import java.util.Map; | |
| public class BarcodeScanner | |
| { | |
| public static void main(final String[] args) | |
| { | |
| if (args.length != 1) | |
| { | |
| System.err.println("Usage: " + BarcodeScanner.class.getCanonicalName() + " <image dir>"); | |
| System.exit(1); | |
| } | |
| File inputDir = new File(args[0]); | |
| if (!inputDir.isDirectory()) | |
| { | |
| System.err.println("Input " + inputDir + " is not a directory"); | |
| System.exit(1); | |
| } | |
| for (File input : inputDir.listFiles()) | |
| { | |
| if (!input.isFile()) | |
| continue; | |
| String filename = input.getName(); | |
| try (BufferedInputStream bfin = new BufferedInputStream(new FileInputStream(input))) | |
| { | |
| BufferedImage bfi = ImageIO.read(bfin); | |
| if (bfi == null) | |
| { | |
| System.err.println("Could not read image from " + filename); | |
| continue; | |
| } | |
| LuminanceSource ls = new BufferedImageLuminanceSource(bfi); | |
| BinaryBitmap bmp = new BinaryBitmap(new HybridBinarizer(ls)); | |
| GenericMultipleBarcodeReader reader = new GenericMultipleBarcodeReader(new MultiFormatReader()); | |
| Result[] results; | |
| Map<DecodeHintType, Object> decodeHints = new EnumMap<>(DecodeHintType.class); | |
| decodeHints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE); | |
| results = reader.decodeMultiple(bmp, decodeHints); | |
| System.out.println("Found " + results.length + " barcodes in " + filename); | |
| int i = 0; | |
| for (Result result : results) | |
| System.out.println("Barcode " + ++i + ": " + result.getText()); | |
| } | |
| catch (NotFoundException e) | |
| { | |
| System.err.println("No barcodes found in " + filename); | |
| } | |
| catch (IOException e) | |
| { | |
| e.printStackTrace(); | |
| } | |
| finally | |
| { | |
| System.out.println("---------------------------------------------------------"); | |
| } | |
| } | |
| } | |
| } |
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| <?xml version="1.0" encoding="UTF-8"?> | |
| <project xmlns="http://maven.apache.org/POM/4.0.0" | |
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | |
| xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | |
| <modelVersion>4.0.0</modelVersion> | |
| <groupId>nl.mumasoft</groupId> | |
| <artifactId>barcodescanner</artifactId> | |
| <version>1.0-SNAPSHOT</version> | |
| <build> | |
| <plugins> | |
| <plugin> | |
| <groupId>org.apache.maven.plugins</groupId> | |
| <artifactId>maven-compiler-plugin</artifactId> | |
| <configuration> | |
| <source>1.8</source> | |
| <target>1.8</target> | |
| </configuration> | |
| <version>2.3.2</version> | |
| </plugin> | |
| </plugins> | |
| </build> | |
| <dependencies> | |
| <dependency> | |
| <groupId>com.google.zxing</groupId> | |
| <artifactId>javase</artifactId> | |
| <version>3.3.3</version> | |
| </dependency> | |
| </dependencies> | |
| </project> |
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