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Add Java Image process
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‎.idea/compiler.xml‎

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‎.idea/encodings.xml‎

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‎core-java-modules/core-java-collections-conversions/src/test/java/com/ossez/java/lists/ListToStringUnitTest.java‎

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import java.util.Arrays;
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import java.util.List;
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import java.util.Set;
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import java.util.stream.Collectors;
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import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.commons.lang3.builder.ToStringBuilder;
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import org.junit.Test;
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public class ListToStringUnitTest {
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public void whenStringUtilsJoin_thenPrintCustom() {
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List<Integer> intList = Arrays.asList(1, 2, 3);
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System.out.println(StringUtils.join(intList, "|"));
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// Object obj1 = new Integer(100);
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// System.out.println(obj1.toString());
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// ToStringBuilder.reflectionToString(intList);
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Country country = new Country("United States", "North America", 4000000);
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System.out.println(ReflectionToStringBuilder.toString(intList));
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}
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class Country {
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private String name;
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private String continent;
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private int population;
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public Country(String name, String continent, int population) {
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this.name = name;
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this.continent = continent;
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this.population = population;
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}
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}
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}

‎core-java-modules/core-java-datetime-conversion/pom.xml‎

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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j</artifactId>
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<version>${version.log4j}</version>
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<version>${log4j.version}</version>
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</dependency>
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<!-- test scoped -->
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<dependency>

‎core-java-modules/core-java-io/pom.xml‎

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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j</artifactId>
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<version>${version.log4j}</version>
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<version>${log4j.version}</version>
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</dependency>
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<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
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<groupId>org.slf4j</groupId>

‎core-java-modules/core-java-streams/pom.xml‎

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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j</artifactId>
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<version>${version.log4j}</version>
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<version>${log4j.version}</version>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>

‎image-processing/README.md‎

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## Image Processing
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This module contains articles about image processing.
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### Relevant Articles:
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- [Working with Images in Java](https://www.baeldung.com/java-images)
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- [Intro to OpenCV with Java](https://www.baeldung.com/java-opencv)
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- [Optical Character Recognition with Tesseract](https://www.baeldung.com/java-ocr-tesseract)
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- [How Can I Resize an Image Using Java?](https://www.baeldung.com/java-resize-image)
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- [Adding Text to an Image in Java](https://www.baeldung.com/java-add-text-to-image)
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- [Capturing Image From Webcam in Java](https://www.baeldung.com/java-capture-image-from-webcam)

‎image-processing/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>image-processing</artifactId>
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<name>image-processing</name>
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<parent>
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<groupId>com.ossez</groupId>
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<artifactId>parent-modules</artifactId>
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<version>0.0.2-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>net.imagej</groupId>
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<artifactId>ij</artifactId>
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<version>${ij.version}</version>
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<exclusions>
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<exclusion>
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<artifactId>commons-logging</artifactId>
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<groupId>commons-logging</groupId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.openimaj</groupId>
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<artifactId>core-image</artifactId>
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<version>${core-image.version}</version>
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<exclusions>
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<exclusion>
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<artifactId>commons-logging</artifactId>
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<groupId>commons-logging</groupId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.openpnp</groupId>
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<artifactId>opencv</artifactId>
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<version>${opencv.version}</version>
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</dependency>
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<dependency>
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<groupId>com.twelvemonkeys.imageio</groupId>
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<artifactId>imageio-core</artifactId>
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<version>${imageio.version}</version>
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</dependency>
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<dependency>
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<groupId>com.twelvemonkeys.imageio</groupId>
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<artifactId>imageio-bmp</artifactId>
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<version>${imageio.version}</version>
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</dependency>
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<dependency>
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<groupId>net.sourceforge.tess4j</groupId>
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<artifactId>tess4j</artifactId>
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<version>${tess4j.version}</version>
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</dependency>
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<dependency>
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<groupId>org.bytedeco</groupId>
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<artifactId>tesseract-platform</artifactId>
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<version>${tesseract-platform.version}</version>
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</dependency>
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<dependency>
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<groupId>org.imgscalr</groupId>
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<artifactId>imgscalr-lib</artifactId>
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<version>${imgscalr-version}</version>
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</dependency>
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<dependency>
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<groupId>net.coobird</groupId>
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<artifactId>thumbnailator</artifactId>
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<version>${thumbnailator-version}</version>
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</dependency>
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<dependency>
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<groupId>com.github.downgoon</groupId>
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<artifactId>marvin</artifactId>
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<version>${marvin-version}</version>
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<type>pom</type>
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</dependency>
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<dependency>
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<groupId>com.github.downgoon</groupId>
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<artifactId>MarvinPlugins</artifactId>
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<version>${marvin-version}</version>
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</dependency>
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<dependency>
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<groupId>org.bytedeco</groupId>
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<artifactId>javacv-platform</artifactId>
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<version>${javacv-platform.version}</version>
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</dependency>
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<dependency>
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<groupId>com.github.sarxos</groupId>
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<artifactId>webcam-capture</artifactId>
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<version>${webcam-capture.version}</version>
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</dependency>
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<dependency>
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<groupId>org.openjfx</groupId>
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<artifactId>javafx-graphics</artifactId>
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<version>${javafx-graphics.version}</version>
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</dependency>
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</dependencies>
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<properties>
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<core-image.version>1.3.10</core-image.version>
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<ij.version>1.51h</ij.version>
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<imageio.version>3.3.2</imageio.version>
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<tess4j.version>4.5.1</tess4j.version>
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<tesseract-platform.version>4.1.0-1.5.2</tesseract-platform.version>
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<opencv.version>4.7.0-0</opencv.version>
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<javacv-platform.version>1.5.5</javacv-platform.version>
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<webcam-capture.version>0.3.12</webcam-capture.version>
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<imgscalr-version>4.2</imgscalr-version>
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<thumbnailator-version>0.4.11</thumbnailator-version>
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<marvin-version>1.5.5</marvin-version>
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<javafx-graphics.version>11</javafx-graphics.version>
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</properties>
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</project>

‎image-processing/src/main/java/com/baeldung/image/resize/core/Graphics2DExample.java‎

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package com.baeldung.image.resize.core;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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public class Graphics2DExample {
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static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
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BufferedImage resizedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
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Graphics2D graphics2D = resizedImage.createGraphics();
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graphics2D.drawImage(originalImage, 0, 0, targetWidth, targetHeight, null);
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graphics2D.dispose();
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return resizedImage;
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}
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public static void main(String[] args) throws IOException {
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BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
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BufferedImage outputImage = resizeImage(originalImage, 200, 200);
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ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-graphics2d.jpg"));
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}
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}

‎image-processing/src/main/java/com/baeldung/image/resize/core/ImageScaledInstanceExample.java‎

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package com.baeldung.image.resize.core;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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public class ImageScaledInstanceExample {
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static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
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Image resultingImage = originalImage.getScaledInstance(targetWidth, targetHeight, Image.SCALE_DEFAULT);
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BufferedImage bufferedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
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bufferedImage.getGraphics()
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.drawImage(resultingImage, 0, 0, null);
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return bufferedImage;
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}
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public static void main(String[] args) throws IOException {
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BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
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BufferedImage outputImage = resizeImage(originalImage, 200, 200);
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ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-scaledinstance.jpg"));
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}
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}

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